About: http://webisa.webdatacommons.org/175726781

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	sum m+n, X1 is e.g. as defined for R1 or is a group (CH3)3 SiO-- and X2 is e.g. hydrogen, methyl, ethyl, a group (CH3)3 Si-- or a group ##STR3## and, when m+n is a number from 3 to 10, X1 and X2 together also form a direct bond.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com