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

Example Input: Sentence: 'a reflection of a wild animal in a side view mirror'. Count the occurrences of the word 'a' in the given sentence.
Example Output: 3

Example Input: Sentence: 'a black counter top of a stove inside a kitchen'. Count the occurrences of the word 'a' in the given sentence.
Example Output: 3

Example Input: Sentence: 'a woman with a scarf wrapped around her holding a plate with chocolate cake'. Count the occurrences of the word 'cake' in the given sentence.
Example Output:
1