It seems that #112 was resolved by 9e83707 with the upvoteCount and downvoteCount properties having their comment clarified.

However, parentItem, also mentioned in #112, seems to not be clear. It is currently a property of Answer, although its description contains language similar to upvoteCount and downvoteCount.

I see a couple ways to resolve this:

• Clarify the comment on parentItem to state that it refers to the parent question.
• Make Question a sub-class of Comment and move parentItem to Comment.
• Create a common super-class for Comment and Question.
• Move parentItem to CreativeWork.

The first of these I dislike because the property is called parentItem.

The second of these makes some sense to me.

The third of these also makes sense. It could be Communication, which could also be the object of some property of CommunicateAction.

The last would be fine, too.

In any case, the parentItem name is a little iffy, but not a big deal.