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

Input: Consider Input: Sentence: 'a picture with a keyboard pen and other things some shown larger with pictures on the side of the big picture'. Count the occurrences of the word 'picture' in the given sentence.

Output: 2

Input: Consider Input: Sentence: 'a red and whit jet blue sky and clouds'. Count the occurrences of the word 'and' in the given sentence.

Output: 2

Input: Consider Input: Sentence: 'girl standing in front of an elephant in a dirt lot'. Count the occurrences of the word 'dirt' in the given sentence.
Output: 1