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

Input: Consider Input: Sentence: 'a reflection of a wild animal in a side view mirror'. Count the occurrences of the word 'a' in the given sentence.

Output: 3


Input: Consider Input: Sentence: 'a close up of a tennis player with a scary mask on'. Count the occurrences of the word 'a' in the given sentence.

Output: 3


Input: Consider Input: Sentence: 'a person on a surfboard on the water'. Count the occurrences of the word 'surfboard' in the given sentence.


Output: 1