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

Input: Consider Input: Sentence: 'a smiling young man with a furry hood sitting on a train'. Count the occurrences of the word 'a' in the given sentence.

Output: 3


Input: Consider Input: Sentence: 'a number of birds in a cage handing from a pole'. Count the occurrences of the word 'handing' in the given sentence.

Output: 1


Input: Consider Input: Sentence: 'a tea kettle that is sitting on a stove'. Count the occurrences of the word 'kettle' in the given sentence.


Output: 1