About: http://webisa.webdatacommons.org/57915134

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	Like you said, bkb is a team fight item and you probably arent going to enter team fight early on in the game so going bkb first is not the best idea especially if you are playing the role of the hard carry.
http://www.w3.org/ns/prov#wasQuotedFrom	liquiddota.com