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

Ex Input:
Sentence: 'a night scene of a secluded  street with nearby parking garage'. Count the occurrences of the word 'a' in the given sentence.

Ex Output:
2


Ex Input:
Sentence: 'a woman with a walker is sitting on a park bench'. Count the occurrences of the word 'with' in the given sentence.

Ex Output:
1


Ex Input:
Sentence: 'three zebras and a gazelle drinking at a watering hole'. Count the occurrences of the word 'a' in the given sentence.

Ex Output:

2