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

Input: Consider Input: Sentence: 'a black and white photo of an airplane being loaded'. Count the occurrences of the word 'of' in the given sentence.

Output: 1


Input: Consider Input: Sentence: 'a couple of horses standing on a  grass covered field'. Count the occurrences of the word 'on' in the given sentence.

Output: 1


Input: Consider Input: Sentence: 'a young woman leaning against a wall with her hands placed on her luggage'. Count the occurrences of the word 'her' in the given sentence.


Output: 2