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

[Q]: Sentence: 'a freckled white horse standing in a grassy area'. Count the occurrences of the word 'a' in the given sentence.
[A]: 2


[Q]: Sentence: 'a skate park with a young man on a skate board going down a concrete beam'. Count the occurrences of the word 'a' in the given sentence.
[A]: 4


[Q]: Sentence: 'a little girl is sitting down holding a hair dryer'. Count the occurrences of the word 'a' in the given sentence.
[A]:
2


