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

Ex Input:
Sentence: 'a dingy yellow tiled bathroom is shown in dim light'. Count the occurrences of the word 'dim' in the given sentence.

Ex Output:
1


Ex Input:
Sentence: 'a giant clock mounted on a building'. Count the occurrences of the word 'a' in the given sentence.

Ex Output:
2


Ex Input:
Sentence: 'a man with a watch holds a tennis racket'. Count the occurrences of the word 'a' in the given sentence.

Ex Output:

3