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coach - n. a person who teaches and trains an athlete or performer
cave - n. a large hole that was formed by natural processes in the side of a cliff or hill or under the ground
challenging - adj. difficult in a way that is usually interesting or enjoyable
diver - n. a person who swims underwater usually while using special equipment to breathe
hug - v. to put your arms around someone or something as a way of showing love or friendship
passageway - n. a long, narrow space that connects one place to another
