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

[Q]: Sentence: 'a boy holding onto a wii mote by a fireplace'. Count the occurrences of the word 'a' in the given sentence.
[A]: 3


[Q]: Sentence: 'a man standing on some rocks holding a surfboard'. Count the occurrences of the word 'a' in the given sentence.
[A]: 2


[Q]: Sentence: 'a close up of a person sitting at a table eating pizza'. Count the occurrences of the word 'a' in the given sentence.
[A]:
3