Fine-Grained Categories of phosphine:

• toxic:gas,
• inorganic:gas,
• flammable:gas,
• gaseous:compound,
• agricultural:fumigant,
• hazardous:gas,
• organic:substrate,
• gaseous:substance,
• poisonous:gas,
• common:pesticide,
• explosive:gas,
• industrial:gas,
• inorganic:substance,
• poisonous:substance,
• permanent:gas,
• harmful:fumes,
• volatile:compound,
• irritating:gas,
• harmful:component,
• larger:grouping,
• deadly:chemical,
• organic:chemical,
• phosphorous:compound,
• corrosive:gas,
• common:chemical,
• deadly:gas,
• suitable:stabilizer,
• inorganic:compound,
• toxic:chemical,
• chemical:fumigant,
• volatile:fumigant,
• hazardous:material,
• volatile:component,

Poetic Qualities of phosphine: