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

[Q]: Sentence: 'a home office features full bookcase a laptop and a red leather chair'. Count the occurrences of the word 'a' in the given sentence.
[A]: 3


[Q]: Sentence: 'a black counter top of a stove inside a kitchen'. Count the occurrences of the word 'a' in the given sentence.
[A]: 3


[Q]: Sentence: 'a boy and a girl are on the beach playing with a disc'. Count the occurrences of the word 'a' in the given sentence.
[A]:
3