possible combinations which involve a "target cross-tweeter" B

A retweets B
	- B's tweet may have cross-mentions (B1, B2, etc.)
	- rt_author_id=B; rt_mentions=B1,B2,...
A retweets tweet mentioning B
	- rt_author_id=...; rt_mentions=B...

A quotes a tweet from B
	- B's tweet may have cross-mentions (B1, B2, etc.)
	- quote_retweeted=B; rt_mentions=B1,B2,...
A quotes a tweet mentioning B
	- quote_retweeted=...; rt_mentions=B...

-- NO --
A retweets a tweet that quotes a tweet mentioning B?
