Anchor: Mercury is a naturally occurring element, but human activity mobilizes mercury in the environment, making it more bioavailable.
Entailed: Mercury is mobilized by human activity in the environment.
Contradiction: Mercury was an artificially created element for warfare.
Contradiction: A man is helping the elderly.
Contradiction: Boats are stranded at low tide in the small fishing harbor.
Contradiction: The children are not touching.
Contradiction: The little girl is kissing the lady.