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

Example Input: Sentence: 'black and white photograph of a park bench in woods'. Count the occurrences of the word 'white' in the given sentence.
Example Output: 1

Example Input: Sentence: 'a bear standing on top a piece of pipe with a chain attached'. Count the occurrences of the word 'a' in the given sentence.
Example Output: 3

Example Input: Sentence: 'a female skiing down a snow covered hill'. Count the occurrences of the word 'skiing' in the given sentence.
Example Output:
1