Anchor:   unskilled labor to assist with hauling of materials, placing of catalyst elements, and clean up.
Entailed: Hauling materials, placing elements, and clean up is unskilled labor.
Contradiction: Cleaning up and hauling materials is highly skilled labor.
Contradiction: The flags are static.
Contradiction: The goalie is in yellow.
Contradiction: Dressed all in white, the woman practices her tennis.
Contradiction: A man is riding a bull.