From: Grains, components and mixtures in biomedical ontologies
mono-sortal | multi-sortal | |
---|---|---|
flexible re. number | “flexible collectives” (e.g., a portion of water) | “flexible compounds” (e.g., a hand) |
strict re. number | “strict collectives” (e.g., a pair of kidneys) | “strict compounds” (e.g., a propanol molecule) |