http://purl.obolibrary.org/obo/OBI_0000643 # has grain
http://purl.obolibrary.org/obo/OBI_0000968 # device
http://purl.obolibrary.org/obo/OBI_0000401 # environment control function
http://purl.obolibrary.org/obo/OBI_0000968 # culture medium