In this task, you need to count the occurrences of the given word in the given sentence.

Sentence: 'a man tilts into the air on a wheeled device connected to a parachute'. Count the occurrences of the word 'a' in the given sentence.
3

Sentence: 'a nick knack of a dog a coffee cup and a tray of food'. Count the occurrences of the word 'a' in the given sentence.
4

Sentence: 'a young male skateboarder performing a trick off a half pipe'. Count the occurrences of the word 'performing' in the given sentence.
1