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

[Q]: Sentence: 'a collection of furniture is in a living room'. Count the occurrences of the word 'a' in the given sentence.
[A]: 2


[Q]: Sentence: 'a gray bird about to perch on a branch'. Count the occurrences of the word 'a' in the given sentence.
[A]: 2


[Q]: Sentence: 'a dog in the water with a frisbee in its mouth'. Count the occurrences of the word 'in' in the given sentence.
[A]:
2