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

[Q]: Sentence: 'a large clock mounted to the side of a tall building'. Count the occurrences of the word 'a' in the given sentence.
[A]: 2


[Q]: Sentence: 'a person doing a jump on a snowboard'. Count the occurrences of the word 'a' in the given sentence.
[A]: 3


[Q]: Sentence: 'a layer of fabric with a pincushion and a pair of scissors'. Count the occurrences of the word 'a' in the given sentence.
[A]:
3