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

Input: Consider Input: Sentence: 'a white cat sitting on a bed next to a night stand'. Count the occurrences of the word 'a' in the given sentence.

Output: 3


Input: Consider Input: Sentence: 'a hotdog french fries coffee and a packet of ketchup and mustard sitting on a tray'. Count the occurrences of the word 'and' in the given sentence.

Output: 2


Input: Consider Input: Sentence: 'a man in a green shirt has a baseball bat'. Count the occurrences of the word 'a' in the given sentence.


Output: 3