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

Input: Consider Input: Sentence: 'a large clock mounted to the side of a tall building'. Count the occurrences of the word 'a' in the given sentence.

Output: 2


Input: Consider Input: Sentence: 'a bed is decorated with a yellow and white patchwork quilt and a stuffed owl'. Count the occurrences of the word 'and' in the given sentence.

Output: 2


Input: Consider Input: Sentence: 'a brown dog wearing sunglasses sitting on top of a bike basket'. Count the occurrences of the word 'on' in the given sentence.


Output: 1