Assertion: meme | /r/HasProperty | viral
Facets:
value: purely
type: DEGREE
value: by some other definitions
type: OTHER
Source sentences:
text: By some other definitions memes are viral and propagate around sometimes mutating as they propagate.
text: Proponents theorize that memes are a viral phenomenon that may evolve by natural selection in a manner analogous to that of biological evolution[citation needed][who?].
text: Other memes are purely viral sensations such as in Keyboard Cat and Bongo Cat.