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

Input: Consider Input: Sentence: 'a person taking a photo in a mirror'. Count the occurrences of the word 'person' in the given sentence.

Output: 1


Input: Consider Input: Sentence: 'a group of four surfboards laying on top of a beach'. Count the occurrences of the word 'top' in the given sentence.

Output: 1


Input: Consider Input: Sentence: 'a girl sitting facing a group of dogs in a fenced in area'. Count the occurrences of the word 'a' in the given sentence.


Output: 3