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

Ex Input:
Sentence: 'a woman sitting in a living room in front of a window'. Count the occurrences of the word 'sitting' in the given sentence.

Ex Output:
1


Ex Input:
Sentence: 'a group of people riding on a boat in a small docking canal'. Count the occurrences of the word 'a' in the given sentence.

Ex Output:
3


Ex Input:
Sentence: 'a black and white image depicting a man preparing to swing a baseball bat'. Count the occurrences of the word 'a' in the given sentence.

Ex Output:

3