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

Ex Input:
Sentence: 'a lady that is at a sink in a kitchen'. Count the occurrences of the word 'a' in the given sentence.

Ex Output:
3


Ex Input:
Sentence: 'a truck that has pictures painted on it sitting in front of a store'. Count the occurrences of the word 'a' in the given sentence.

Ex Output:
2


Ex Input:
Sentence: 'a teddy bear is put up next to a street sign'. Count the occurrences of the word 'sign' in the given sentence.

Ex Output:

1