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

[Q]: Sentence: 'a man riding skis on a snow covered ski slope'. Count the occurrences of the word 'a' in the given sentence.
[A]: 2


[Q]: Sentence: 'a yellow sign warns of a plank surface in front of a large gray building'. Count the occurrences of the word 'yellow' in the given sentence.
[A]: 1


[Q]: Sentence: 'a gray and black spotted and striped cat wearing a vest and climbing in a vehicle'. Count the occurrences of the word 'cat' in the given sentence.
[A]:
1