. _:b1217844 . . _:b1217848 . "ENVO:00003091"^^ . _:b1217845 . _:b1217847 _:b1217846 . _:b1217846 _:b1217845 . _:b1217847 . _:b1217844 . "ENVO"^^ . "threonine enriched soil"^^ . _:b1217848 . _:b1217848 . _:b1217844 _:b1217847 . _:b1217848 . _:b1217846 . _:b1217845 . _:b1217845 .