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

Input: Consider Input: Sentence: 'a traffic signal is lit on the side of a city street'. Count the occurrences of the word 'a' in the given sentence.

Output: 2


Input: Consider Input: Sentence: 'two pieces of luggage are sitting on the shelf'. Count the occurrences of the word 'two' in the given sentence.

Output: 1


Input: Consider Input: Sentence: 'a sandwich with meat and sauce on a plate'. Count the occurrences of the word 'sauce' in the given sentence.


Output: 1