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

Ex Input:
Sentence: 'a sign for a saab car dealership and cars surrounding it'. Count the occurrences of the word 'sign' in the given sentence.

Ex Output:
1


Ex Input:
Sentence: 'a motorcycle rider on a red bike some dirt and a sign'. Count the occurrences of the word 'a' in the given sentence.

Ex Output:
3


Ex Input:
Sentence: 'a large knife lies on a plate containing half of a chocolate cake'. Count the occurrences of the word 'a' in the given sentence.

Ex Output:

3