About: http://webisa.webdatacommons.org/451152213

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	(5a.1) One such rotation direction is a rotation of the grinding wheel about the milling cutter axis (pos_i,j=pos_i,j???1 * rot(x,alpha_j)) (step 30 in FIG. 6) such as illustrated in FIGS. 4 and 5.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com