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

[EX Q]: Sentence: 'a person flying a kite on a busy city street'. Count the occurrences of the word 'on' in the given sentence.
[EX A]: 1

[EX Q]: Sentence: 'a group of people stand inside of a big room'. Count the occurrences of the word 'inside' in the given sentence.
[EX A]: 1

[EX Q]: Sentence: 'a boy and girl eat breakfast in a bed'. Count the occurrences of the word 'a' in the given sentence.
[EX A]:
2