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

[Q]: Sentence: 'a variety of aerial vehicles in a hangar'. Count the occurrences of the word 'a' in the given sentence.
[A]: 2


[Q]: Sentence: 'a little girl sitting in front of a table full of dishes'. Count the occurrences of the word 'front' in the given sentence.
[A]: 1


[Q]: Sentence: 'a guy hitting a ball at a professional baseball game'. Count the occurrences of the word 'a' in the given sentence.
[A]:
3