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

Input: Consider Input: Sentence: 'a propeller plane that is parked in a hanger'. Count the occurrences of the word 'a' in the given sentence.

Output: 2


Input: Consider Input: Sentence: 'a batter waits for the next pitch during a baseball game'. Count the occurrences of the word 'a' in the given sentence.

Output: 2


Input: Consider Input: Sentence: 'a man is biting down on something a making a face'. Count the occurrences of the word 'is' in the given sentence.


Output: 1