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

[Q]: Sentence: 'a man performs a flip trick on a skateboard'. Count the occurrences of the word 'a' in the given sentence.
[A]: 3

[Q]: Sentence: 'a group of people riding on a boat in a small docking canal'. Count the occurrences of the word 'a' in the given sentence.
[A]: 3

[Q]: Sentence: 'a girl sits in the dark looking at a laptop with a cellphone in her hand'. Count the occurrences of the word 'in' in the given sentence.
[A]:
2