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

Q: Sentence: 'a big shaggy dog is tied up with its leash next to some stairs outside of a building'. Count the occurrences of the word 'shaggy' in the given sentence.

A: 1
****
Q: Sentence: 'a man wearing a white helmet is riding a red motorcycle'. Count the occurrences of the word 'a' in the given sentence.

A: 3
****
Q: Sentence: 'a woman holding a child are looking at a cow over a fence'. Count the occurrences of the word 'a' in the given sentence.

A:
4
****