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

Example Input: Sentence: 'a group of men in front of a table of green bananas while a man in the blue plaid shirt holds his hand out as if to hold on to something'. Count the occurrences of the word 'in' in the given sentence.
Example Output: 2

Example Input: Sentence: 'a pedestal sink and a toilet in a bathroom'. Count the occurrences of the word 'a' in the given sentence.
Example Output: 3

Example Input: Sentence: 'a small section of a rest room with some towels'. Count the occurrences of the word 'a' in the given sentence.
Example Output:
2

