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

[Q]: Sentence: 'a baseball pitcher throwing a baseball during a game'. Count the occurrences of the word 'a' in the given sentence.
[A]: 3


[Q]: Sentence: 'a teddy bear is strapped into a seat'. Count the occurrences of the word 'a' in the given sentence.
[A]: 2


[Q]: Sentence: 'a wooden rail covered in snowboards on a snow covered mountain'. Count the occurrences of the word 'covered' in the given sentence.
[A]:
2