About: http://webisa.webdatacommons.org/444971237

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	You are right, not being able to adjust where the balloon is on your line is a drawback, however there is a product out there that fixes that from Balloon Fisher King.
http://www.w3.org/ns/prov#wasQuotedFrom	wmi.org