About: http://webisa.webdatacommons.org/320348650

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	I am really not sure how you lose - if your app is a flop you are going to coast along on the free plan, if it is a success you can focus on your app rather than your stack, and you can migrate away from them when you feel like it.
http://www.w3.org/ns/prov#wasQuotedFrom	ycombinator.com