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

Input: Consider Input: Sentence: 'a red and white stop sign and a black and white sign and a building'. Count the occurrences of the word 'and' in the given sentence.

Output: 4


Input: Consider Input: Sentence: 'a man on a surf board holding on to a sail in the ocean'. Count the occurrences of the word 'a' in the given sentence.

Output: 3


Input: Consider Input: Sentence: 'a young girl having fun going down the stairs on her skate board'. Count the occurrences of the word 'skate' in the given sentence.


Output: 1