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

Input: Consider Input: Sentence: 'a view of a group of people standing inside  a building with umbrellas'. Count the occurrences of the word 'a' in the given sentence.

Output: 3


Input: Consider Input: Sentence: 'a group of people pose together holding their skis in their hands'. Count the occurrences of the word 'a' in the given sentence.

Output: 1


Input: Consider Input: Sentence: 'a small teddy bear tucked against a pillow in a made made'. Count the occurrences of the word 'a' in the given sentence.


Output: 3