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

[EX Q]: Sentence: 'a crowd of people standing next to a bus'. Count the occurrences of the word 'a' in the given sentence.
[EX A]: 2

[EX Q]: Sentence: 'a cat sitting near a window looking at a squirrel eating'. Count the occurrences of the word 'a' in the given sentence.
[EX A]: 3

[EX Q]: Sentence: 'a black dog catching a frisbee in grassy area'. Count the occurrences of the word 'a' in the given sentence.
[EX A]:
2