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

[EX Q]: Sentence: 'a group of four surfboards laying on top of a beach'. Count the occurrences of the word 'top' in the given sentence.
[EX A]: 1

[EX Q]: Sentence: 'a close up of a person riding skis on a body of water'. Count the occurrences of the word 'a' in the given sentence.
[EX A]: 3

[EX Q]: Sentence: 'painting of a ship in grass with lighthouse in background'. Count the occurrences of the word 'in' in the given sentence.
[EX A]:
2