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

Input: Consider Input: Sentence: 'three different types of clocks next to a  glass filled with champagne'. Count the occurrences of the word 'types' in the given sentence.

Output: 1


Input: Consider Input: Sentence: 'a tall red brick cathedral with two large towers'. Count the occurrences of the word 'tall' in the given sentence.

Output: 1


Input: Consider Input: Sentence: 'a dog catching a frisbee on a baseball field while its owner watches'. Count the occurrences of the word 'a' in the given sentence.


Output: 3