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

Ex Input:
Sentence: 'a double decker bus that is parked in front of a parking structure'. Count the occurrences of the word 'in' in the given sentence.

Ex Output:
1


Ex Input:
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.

Ex Output:
1


Ex Input:
Sentence: 'a full view of a building that has a huge roof on top'. Count the occurrences of the word 'a' in the given sentence.

Ex Output:

3