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

Sentence: 'painting of a ship in grass with lighthouse in background'. Count the occurrences of the word 'in' in the given sentence.
2

Sentence: 'a baseball player holding a bat while playing a game'. Count the occurrences of the word 'a' in the given sentence.
3

Sentence: 'a gentleman walking around the edge of a pool as a bus goes by'. Count the occurrences of the word 'a' in the given sentence.

3