"The specific object of the property observed. Examples are: biological agents, chemical substances, and radioactivity objects"@en . . "Water Observable Property Object"@en . _:B1f359e1b9656cdc56afd8b527e9822c1 . . . . _:B1f359e1b9656cdc56afd8b527e9822c1 . _:B1f359e1b9656cdc56afd8b527e9822c1 . _:B1f359e1b9656cdc56afd8b527e9822c1 .