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

[Q]: Sentence: 'black and white photo of a person with an umbrella on a dock'. Count the occurrences of the word 'a' in the given sentence.
[A]: 2


[Q]: Sentence: 'a group of people in a field flying kites on a clear day'. Count the occurrences of the word 'a' in the given sentence.
[A]: 3


[Q]: Sentence: 'a group of young men playing a game of frisbee in a park'. Count the occurrences of the word 'a' in the given sentence.
[A]:
3