Assertion: yik yak | /r/CapableOf | launch in november
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Source sentences:
text: Yik Yak was founded by college students, Tyler Droll and Brooks Buffington and launched in November 2013.
text: A mobile, anonymous social network with apps for Android and iOS, Yik Yak launched in November 2013 and has been as hot as happy hour on college campuses ever since.