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

[EX Q]: Sentence: 'this is a blurry image of a man in a kitchen'. Count the occurrences of the word 'a' in the given sentence.
[EX A]: 3

[EX Q]: Sentence: 'a smiling young man with a furry hood sitting on a train'. Count the occurrences of the word 'a' in the given sentence.
[EX A]: 3

[EX Q]: Sentence: 'a woman holding a purse looks towards a train'. Count the occurrences of the word 'purse' in the given sentence.
[EX A]:
1