About: http://webisa.webdatacommons.org/291672959

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	However, uncharged phosphorous-linked polynucleotide analogs of the type just described have limitations, particularly the cost and difficulty of preparing the polymers.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es