_:b15603 . _:b15602 _:b17760 . _:b16277 . _:b15604 . _:b15603 . _:b16277 _:b17326 . _:b17326 . _:b17326 . . . _:b15603 . _:b15604 . _:b15604 . _:b15603 . _:b15604 . _:b17760 _:b16277 . "PorosityClass"@en . _:b15602 . _:b15602 . _:b15602 . "Guidelines for Soil Description issued by the FAO: table 60"@en .