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

Ex Input:
Sentence: 'a room with colorful blankets and several papers strewn across the floor'. Count the occurrences of the word 'with' in the given sentence.

Ex Output:
1

Ex Input:
Sentence: 'girl standing in front of an elephant in a dirt lot'. Count the occurrences of the word 'dirt' in the given sentence.

Ex Output:
1

Ex Input:
Sentence: 'a plate with a piece of cake and a pat of butter with a fork'. Count the occurrences of the word 'a' in the given sentence.

Ex Output:
4