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

Example Input: Sentence: 'a white plate with rice and vegetables with wooden chop sticks'. Count the occurrences of the word 'chop' in the given sentence.
Example Output: 1

Example Input: Sentence: 'a close up of a child at a table with a cake'. Count the occurrences of the word 'a' in the given sentence.
Example Output: 4

Example Input: Sentence: 'three elephants standing between a fence and a road'. Count the occurrences of the word 'a' in the given sentence.
Example Output:
2