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

Input: Consider Input: Sentence: 'a man in black shirt playing a game with a nintendo wii controller'. Count the occurrences of the word 'a' in the given sentence.

Output: 3


Input: Consider Input: Sentence: 'a man with a baseball bat with an intense look on his face'. Count the occurrences of the word 'with' in the given sentence.

Output: 2


Input: Consider Input: Sentence: 'a couple of men standing on a lush green field holding a frisbee'. Count the occurrences of the word 'a' in the given sentence.


Output: 3