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

[EX Q]: Sentence: 'a group of cows standing next to each other'. Count the occurrences of the word 'a' in the given sentence.
[EX A]: 1

[EX Q]: Sentence: 'a propeller plane that is parked in a hanger'. Count the occurrences of the word 'a' in the given sentence.
[EX A]: 2

[EX Q]: Sentence: 'a man standing in the grass throwing a frisby'. Count the occurrences of the word 'a' in the given sentence.
[EX A]:
2