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

[EX Q]: Sentence: 'a man surfing at the base of a large wave'. Count the occurrences of the word 'a' in the given sentence.
[EX A]: 2

[EX Q]: Sentence: 'a traffic signal is lit on the side of a city street'. Count the occurrences of the word 'a' in the given sentence.
[EX A]: 2

[EX Q]: Sentence: 'a girl is holding a large kite on a grassy field'. Count the occurrences of the word 'a' in the given sentence.
[EX A]:
3