The themes found in rembetiko are those closest to the hearts of the common  lost love, poverty, social division, and discrimination.
Poverty and social division are themes in rembetiko.
Discrimination is not a theme found in rembetiko.
A black dog is outside.
This analysis covers everything, in its wide scope.
There is a fish market next to the canal.
The name Eagle Rock comes from its old inhabitants, not its shape.
The scientist is studying something under a microscope.
The British and French were enemies in the Caribbean.