Anchor: Perhaps way, way back in human history, when our forebears were still fleeing saber-toothed tigers, natural selection for athletic prowess came into play.
Entailed: Maybe natural selection changed how we live.
Contradiction: Natural selection has been proven to be false.
Contradiction: There is not much game fishing around FWI.
Contradiction: The broken machine is being fixed by the technician.
Contradiction: There are people cooking in a kitchen.
Contradiction: The child is wearing a sweater and playing with a turquoise balloon.