AFT Portion of Material - Perspective - working draft

(http://purl.allotrope.org/voc/afo/perspective/WD/2018/04/portion-of-material)
created/issued: 2018-04-17T12:00:00Z
modified: 209-12-05T12:00:00Z

Taxonomy of materials (stuff, matter) under its physical composition perspective and their roles