About: http://webisa.webdatacommons.org/424628567

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	- Certain types of cancers, including sarcoma and melanoma, have specific antigens (protein molecules) on their surfaces.
http://www.w3.org/ns/prov#wasQuotedFrom	clinicaltrials.gov