Anchor: Exchange transactions-- gains and losses
Entailed: Increases and decreases, transaction exchange.
Contradiction: Exchange liabilities - benefits and boons. 
Contradiction: The Black Eunuchs were not allowed in the Harem, only the slaves were.
Contradiction: There's a difference between if you did or didn't serve and how you served.
Contradiction: Two women walk around doing chores around the house.
Contradiction: There are very little differences genetically between human races.