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

Ex Input:
Sentence: 'a white dog with a black eye laying on a blanket'. Count the occurrences of the word 'a' in the given sentence.

Ex Output:
3


Ex Input:
Sentence: 'a bedroom with a bed next to a closet'. Count the occurrences of the word 'a' in the given sentence.

Ex Output:
3


Ex Input:
Sentence: 'a living area with couch laptop desk and rug'. Count the occurrences of the word 'area' in the given sentence.

Ex Output:

1