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

Example Input: Sentence: 'there are people that are walking on the street'. Count the occurrences of the word 'that' in the given sentence.
Example Output: 1

Example Input: Sentence: 'a hotdog french fries coffee and a packet of ketchup and mustard sitting on a tray'. Count the occurrences of the word 'and' in the given sentence.
Example Output: 2

Example Input: Sentence: 'giraffe reaching up to eat the little buds on the tree'. Count the occurrences of the word 'the' in the given sentence.
Example Output:
2