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

Input: Consider Input: Sentence: 'a woman sleeps in a bed with a pillow and sheet'. Count the occurrences of the word 'a' in the given sentence.

Output: 3


Input: Consider Input: Sentence: 'a motorcycle rider on a red bike some dirt and a sign'. Count the occurrences of the word 'a' in the given sentence.

Output: 3


Input: Consider Input: Sentence: 'a folding table sitting in a kitchen with a window behind the sink'. Count the occurrences of the word 'a' in the given sentence.


Output: 3