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

Ex Input:
Sentence: 'a home computer setup with two laptops on a desk'. Count the occurrences of the word 'a' in the given sentence.

Ex Output:
2


Ex Input:
Sentence: 'some food is sitting on a stove top in a kitchen area'. Count the occurrences of the word 'is' in the given sentence.

Ex Output:
1


Ex Input:
Sentence: 'black and white image of people standing in front of a painted advertisement'. Count the occurrences of the word 'of' in the given sentence.

Ex Output:

2