organism: human gut metagenome
attributes.tag: collection_date
attributes.value: 2013-12-31
attributes.tag: env_biome
attributes.value: gut
attributes.tag: env_feature
attributes.value: intestine
attributes.tag: env_material
attributes.value: fecal
attributes.tag: geo_loc_name
attributes.value: missing
attributes.tag: host
attributes.value: Homo sapiens
attributes.tag: lat_lon
attributes.value: not collected
attributes.tag: host_age
attributes.value: not collected
attributes.tag: BioSampleModel
attributes.value: Metagenome or environmental