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

Input: Consider Input: Sentence: 'a woman riding a biek down a sidewalk'. Count the occurrences of the word 'a' in the given sentence.

Output: 3


Input: Consider Input: Sentence: 'an image of a man in a suit standing next to a cow'. Count the occurrences of the word 'image' in the given sentence.

Output: 1


Input: Consider Input: Sentence: 'two people that are racing on some  fast motorcycles'. Count the occurrences of the word 'are' in the given sentence.


Output: 1