Anchor: Their love of their child, and their child's love of them, depends not on genetic math but on a long and complex chain of bonding, much of which they have already voluntarily missed out on.
Entailed: Love between parents and children doesn't inevitably develop due to genetic ties.
Contradiction: Love between parents and children happens due to genetic ties.
Contradiction: And it's your previous experience that counts. 
Contradiction: The man is wearing a white shirt.
Contradiction: A child is climbing a tree.
Contradiction: A man is in a small boat.