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

[EX Q]: Sentence: 'a small cat is sitting on a step by a door'. Count the occurrences of the word 'a' in the given sentence.
[EX A]: 3

[EX Q]: Sentence: 'a man in red apron preparing food at a table'. Count the occurrences of the word 'apron' in the given sentence.
[EX A]: 1

[EX Q]: Sentence: 'a man in a suit gives a presentation'. Count the occurrences of the word 'a' in the given sentence.
[EX A]:
3