About: http://webisa.webdatacommons.org/63707495

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	est to solve them.4.Sample: Most of samples are free, but some of special sample such as big size, big quanlity will be paid by customer.
http://www.w3.org/ns/prov#wasQuotedFrom	alibaba.com