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 small grey bird eating food from paper plates on a picnic table'. Count the occurrences of the word 'small' in the given sentence.
[A]: 1


[Q]: Sentence: 'a small bird on a tree branch with a fruit'. Count the occurrences of the word 'a' in the given sentence.
[A]:
3