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

Input: Consider Input: Sentence: 'a lady that is at a sink in a kitchen'. Count the occurrences of the word 'a' in the given sentence.

Output: 3


Input: Consider Input: Sentence: 'a dog stares into a camera inside of a car'. Count the occurrences of the word 'a' in the given sentence.

Output: 3


Input: Consider Input: Sentence: 'a male tennis player holds a racquet and walks on the court'. Count the occurrences of the word 'a' in the given sentence.


Output: 2