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

Ex Input:
Sentence: 'a sidewalk with trimmed hedges and signage'. Count the occurrences of the word 'hedges' in the given sentence.

Ex Output:
1


Ex Input:
Sentence: 'three elephants standing between a fence and a road'. Count the occurrences of the word 'a' in the given sentence.

Ex Output:
2


Ex Input:
Sentence: 'a black cat is sitting on an office chair'. Count the occurrences of the word 'office' in the given sentence.

Ex Output:

1