About: http://webisa.webdatacommons.org/150628513

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	Preferably in the formula I, X stands for H or CH3 and R for H or CH3, particularly for H.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com.au