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

Example Input: Sentence: 'two zebras playing with each others furry ears'. Count the occurrences of the word 'two' in the given sentence.
Example Output: 1

Example Input: Sentence: 'a orange cat sleeping on top of a blanket'. Count the occurrences of the word 'blanket' in the given sentence.
Example Output: 1

Example Input: Sentence: 'a night scene of a secluded  street with nearby parking garage'. Count the occurrences of the word 'a' in the given sentence.
Example Output:
2