{"schema":"https://ver.cy/schemas/card/1.0.0","id":"vr.tr.hay","code":"thing-q336989","url":"https://ver.cy/models/thing/q336989/","name":"hay","alternateNames":["aftergrass","aftermath","windrow"],"kind":"thing","status":"published","version":"0.2.0-wave.4","language":"en","classifiers":{"family":"Thing Registry","category":"Physical world and living systems","entryKind":"thing","plane":"PHY","domain":["PHY.LIV"],"industry":[],"navPath":"","tags":[],"facets":{}},"whatItIs":"Grass, legumes or other herbaceous plants cut, dried and stored for use as animal fodder, especially for cattle, horses, sheep and goats, made by mowing, turning and raking into windrows, then baling; aftergrass or aftermath is the regrowth after a first cut, which may be taken as a second crop. Hay quality depends on plant species, maturity at cutting and drying conditions, and damp hay can overheat and ignite.","purpose":"Let an agent explain hay, relay production, quality, storage and safety from agricultural sources, describe windrows and aftermath, and distinguish hay from straw, silage, haylage and fresh pasture.","scope":{"in":[],"out":[],"boundaries":[]},"distinguishingFeatures":["Dried forage","Mowing and baling","Quality varies","Fire risk if damp"],"structure":{"bundles":[{"id":"understand","name":"Understand","description":"What hay is.","layers":[{"id":"definition","name":"Definition","description":"Definition.","findings":[{"id":"definition-finding","name":"Definition","description":"Definition.","questions":[{"text":"What is hay, and how does it differ from straw, silage, haylage and pasture?","kind":"definition"},{"text":"Is the question about production, feeding, storage safety or terminology?","kind":"boundary"}]}]},{"id":"terms","name":"Terms","description":"Terms.","findings":[{"id":"terms-finding","name":"Terms","description":"Terms.","questions":[{"text":"What are windrows, aftergrass and aftermath?","kind":"definition"},{"text":"Which entry fits the specific term?","kind":"action"}]}]}]},{"id":"production","name":"Production","description":"Production.","layers":[{"id":"making","name":"Making","description":"Haymaking.","findings":[{"id":"making-finding","name":"Making","description":"Making.","questions":[{"text":"How is hay mown, dried, raked and baled?","kind":"provenance"},{"text":"Which references are standard?","kind":"provenance"}]}]},{"id":"quality","name":"Quality","description":"Quality.","findings":[{"id":"quality-finding","name":"Quality","description":"Quality.","questions":[{"text":"What determines hay quality, and how is it tested?","kind":"provenance"},{"text":"Which sources are cited?","kind":"provenance"}]}]}]},{"id":"safety","name":"Safety","description":"Storage and safety.","layers":[{"id":"fire","name":"Fire","description":"Fire risk.","findings":[{"id":"fire-finding","name":"Fire","description":"Fire.","questions":[{"text":"Why can damp hay self-heat and ignite, and what do fire services advise?","kind":"provenance"},{"text":"Which entry fits spontaneous combustion?","kind":"action"}]}]},{"id":"health","name":"Health","description":"Animal and human health.","findings":[{"id":"health-finding","name":"Health","description":"Health.","questions":[{"text":"What are the risks of mouldy hay and hay dust, in general terms?","kind":"provenance"},{"text":"Which entry fits farmer s lung?","kind":"action"}]}]}]},{"id":"context","name":"Context","description":"History.","layers":[{"id":"history","name":"History","description":"History.","findings":[{"id":"history-finding","name":"History","description":"History.","questions":[{"text":"How did haymaking change from scythes to balers?","kind":"provenance"},{"text":"Which entry fits hay baler?","kind":"action"}]}]},{"id":"culture","name":"Culture","description":"Culture.","findings":[{"id":"culture-finding","name":"Culture","description":"Culture.","questions":[{"text":"How does haymaking figure in rural culture and idioms?","kind":"provenance"},{"text":"Which entry fits make hay while the sun shines?","kind":"action"}]}]}]}]},"agentConduct":{"may":["Explain how hay is made, graded and stored from agricultural sources.","Monitor stored hay temperature and moisture and alert the keeper to heating."],"mustNot":["Advise baling or stacking hay too moist, which risks spontaneous combustion.","Feed mouldy or dusty hay to animals.","Confuse hay with straw when advising on animal feed.","Store hay near ignition sources or block barn exits with bales."],"requiresHuman":["Deciding to open or move a stack that is heating dangerously."]},"ethics":{"considerations":["Hay fires destroy barns and kill animals; mould harms animals and people.","Animals depend on good fodder for their welfare through winter."],"affectedParties":["Livestock","Farmers and farm workers","Firefighters"]},"owners":{"steward":"The farmer or keeper who makes or stores it.","roles":[],"masterSystems":[]},"relations":[{"target":"Q12046531","type":"parent","note":"registry parent class"},{"target":"Q190903","type":"parent","note":"registry parent class"},{"target":"Q66429760","type":"parent","note":"registry parent class"},{"target":"food and fodder","type":"related","note":"in registry terms"},{"target":"straw","type":"related"},{"target":"silage","type":"related"},{"target":"hay barrack","type":"related","note":"historically among others"}],"interaction":{"identity":{"applicability":"required","items":["Vercy registry: vr.tr.hay","Wikidata: Q336989 (https://www.wikidata.org/wiki/Q336989)"]},"properties":{"applicability":"required","items":["safe baling moisture: about 15-20 percent - small bales","spontaneous combustion risk: above about 20 percent moisture note","common species: timothy, ryegrass, alfalfa, clover list"]},"recognition":{"applicability":"required","items":["Dried cut forage for livestock","Windrow, aftergrass, aftermath, bales","Straw is cereal stalks; silage is fermented wet forage; haylage is partly dried and wrapped; pasture is grazed fresh","Dried green to golden grass in bales or stacks."]},"capabilities":{"applicability":"required","items":["explain production","relay quality and storage","describe related terms","distinguish related feeds"]},"hazards":{"applicability":"required","items":["Spontaneous combustion","Mould and dust affecting animals and people","Confusing hay and straw"]},"interfaces":{"applicability":"required","items":["Forage quality testing standards","Fire safety guidance for hay storage"]},"context":{"applicability":"required","items":["Feeding livestock.","grass hay","legume hay such as alfalfa","mixed hay","second cut or aftermath hay","small and large bales"]}},"sources":[{"title":"Wikidata item Q336989: hay","url":"https://www.wikidata.org/wiki/Q336989","note":"identity and sense of the item"},{"title":"Wikipedia: Hay","url":"https://en.wikipedia.org/wiki/Hay","note":"general description of the item"}],"openQuestions":["Should aftermath be a separate entry?","How should agricultural sources be linked?","The registry parent herbaceous plant confuses the product with the plant; should it be reviewed?"],"resources":{"spec":"/models/things/publications/thing-q336989/spec.json"},"provenance":{"origin":"thing registry research (pass 2)","builtFrom":["models/things/publications/thing-q336989/spec.json"],"providers":["Claude"],"researchStatus":"unreviewed","generatedAt":"2026-09-13T19:22:08Z","builder":"tools/build_cards.py@1.0.0"},"completeness":{"sections":{"classifiers":"filled","whatItIs":"filled","purpose":"filled","distinguishingFeatures":"filled","structure":"filled","agentConduct":"filled","ethics":"filled","owners":"filled","relations":"filled","interaction.identity":"filled","interaction.properties":"filled","interaction.recognition":"filled","interaction.capabilities":"filled","interaction.hazards":"filled","interaction.interfaces":"filled","interaction.context":"filled","sources":"filled"},"notes":{"_gate":"Published through the thing publication gate 1.0 on 2026-10-06T19:51:59+00:00: completeness 1.00; sense: Wikidata description; 2 live sources; review by codex: pass"},"score":1.0}}