About: http://webisa.webdatacommons.org/325277954

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	To reuse the unit within e.g. for loop, each superstep can be viewed as a command and a `For' class, which extends the command interface, can be used to collect units to be computed.
http://www.w3.org/ns/prov#wasQuotedFrom	apache.org