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

Ex Input:
Sentence: 'a man wearing glasses sits on a bench looking to the side'. Count the occurrences of the word 'man' in the given sentence.

Ex Output:
1


Ex Input:
Sentence: 'a delivery truck for a library parked by a meter'. Count the occurrences of the word 'a' in the given sentence.

Ex Output:
3


Ex Input:
Sentence: 'a man that has a kite that is laying on the ground'. Count the occurrences of the word 'a' in the given sentence.

Ex Output:

2