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

[Q]: Sentence: 'a woman is riding a wave on a surfboard'. Count the occurrences of the word 'a' in the given sentence.
[A]: 3


[Q]: Sentence: 'some people with a bunch of hot dogs on some big forks'. Count the occurrences of the word 'people' in the given sentence.
[A]: 1


[Q]: Sentence: 'a man playing a game of frisbee on a green lawn'. Count the occurrences of the word 'a' in the given sentence.
[A]:
3