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

Input: Consider Input: Sentence: 'a tv sitting on a patch of grass next to a pole'. Count the occurrences of the word 'a' in the given sentence.

Output: 3


Input: Consider Input: Sentence: 'a person feeding a cow with a bottle'. Count the occurrences of the word 'a' in the given sentence.

Output: 3


Input: Consider Input: Sentence: 'a variety of old motorcycles on display in a shop'. Count the occurrences of the word 'a' in the given sentence.


Output: 2