Assertion: wave's lack | /r/HasProperty | attributed among other things
Facets:
value: in retrospect
type: TEMPORAL
value: to its complicated user interface
type: CAUSE
Source sentences:
text: In retrospect, the lack of success of Google Wave was attributed among other things to its complicated user interface resulting from a product that merged features of email, instant messengers and wikis but ultimately failed to do anything significantly better than the existing solutions.