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

[Q]: Sentence: 'a zebra in the wild walking towards a dirt road'. Count the occurrences of the word 'a' in the given sentence.
[A]: 2


[Q]: Sentence: 'a woman is petting a small horse in a field'. Count the occurrences of the word 'a' in the given sentence.
[A]: 3


[Q]: Sentence: 'this is a bathroom with a white sink and mirror'. Count the occurrences of the word 'white' in the given sentence.
[A]:
1