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

[EX Q]: Sentence: 'a white and gray cat is in a bathroom sink'. Count the occurrences of the word 'white' in the given sentence.
[EX A]: 1

[EX Q]: Sentence: 'a person on a sandy beach throwing a frisbee'. Count the occurrences of the word 'a' in the given sentence.
[EX A]: 3

[EX Q]: Sentence: 'a little dog sits on a desk staring at the food in front of him'. Count the occurrences of the word 'a' in the given sentence.
[EX A]:
2