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

Input: Consider Input: Sentence: 'a tall plant protrudes from a glass vase'. Count the occurrences of the word 'a' in the given sentence.

Output: 2


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: 'a person is holding a bat at a baseball game'. Count the occurrences of the word 'a' in the given sentence.


Output: 3