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

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

Output: 3


Input: Consider Input: Sentence: 'several sheet grazing on greens near some mountains'. Count the occurrences of the word 'mountains' in the given sentence.

Output: 1


Input: Consider Input: Sentence: 'a black and white photo with a man on a bench and a woman that is hard to see'. Count the occurrences of the word 'a' in the given sentence.


Output: 4