Assertion: answer | /r/HasProperty | chosen
Facets:
Source sentences:
text: Answers, once the "best answer" was chosen, there was no way to add more answers nor to improve or challenge the best answer chosen by the question asker; there is a display of thumbs down or thumbs up for each answer, but viewers cannot vote.
text: In April 2014, this was changed to allow for additional answers after a best answer is chosen, but the best answer can never be changed.