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

[EX Q]: Sentence: 'there are many people that are riding a elephant'. Count the occurrences of the word 'are' in the given sentence.
[EX A]: 2

[EX Q]: Sentence: 'a man standing in front of a jet engine'. Count the occurrences of the word 'a' in the given sentence.
[EX A]: 2

[EX Q]: Sentence: 'a camera is sitting on a desk near a computer keyboard'. Count the occurrences of the word 'a' in the given sentence.
[EX A]:
3