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

Example Input: Sentence: 'a boat on a river while a woman on a bicycle with a baby stands on the bank'. Count the occurrences of the word 'stands' in the given sentence.
Example Output: 1

Example Input: Sentence: 'a person wearing a suit and tie next to a woman in a dress'. Count the occurrences of the word 'tie' in the given sentence.
Example Output: 1

Example Input: Sentence: 'a mom with her daughter under an umbrella'. Count the occurrences of the word 'under' in the given sentence.
Example Output:
1