Anchor: A man using a metal detector walking on the beach as people are in the water and on the beach.
Entailed: The man looks for buried treasure at the ocean.
Contradiction: A man is swimming in the water with a metal detector.
Contradiction: A man is using a violin.
Contradiction: A man using a metal detector while visiting a public swimming pool.
Contradiction: The man is swimming in the ocean.
Contradiction: A man uses his metal detector in the mountains.