Assertion: search engine's user | /r/CapableOf | send message
Facets:
Source sentences:
text: A secondary flow of answering questions was more similar to traditional bulletin-board style interactions: a user sent a message to Aardvark or visited the "Answering" tab of the website, Aardvark showed the user a recent question from the user's network which had not yet been answered and which was related to the user's profile topics.