Anchor: (And the high concentration of oxygen in the atmosphere that sustains life on this planet--hey, it's on me!)
Entailed: (Hey, it's on me--the high concentration of oxygen in the atmosphere that sustains life on this planet.)
Contradiction: High concentration of oxygen in the atmosphere doesn't matter in that scenario.
Contradiction: MEN WALK ON THE ROAD TO PROTEST
Contradiction: There were situations that were better than his love life. 
Contradiction: The worker harvested the crop on the bright sunny day.
Contradiction: A man is standing on his hands in the sand.