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

Input: Consider Input: Sentence: 'a person on a beach flying a kite in the sky'. Count the occurrences of the word 'a' in the given sentence.

Output: 3


Input: Consider Input: Sentence: 'a plastic container of food including chicken and broccoli'. Count the occurrences of the word 'and' in the given sentence.

Output: 1


Input: Consider Input: Sentence: 'three girls sitting in a living room eating pizza'. Count the occurrences of the word 'sitting' in the given sentence.


Output: 1