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

Ex Input:
Sentence: 'a truck tipped over next to a guard rail'. Count the occurrences of the word 'to' in the given sentence.

Ex Output:
1


Ex Input:
Sentence: 'a white and gray cat is in a bathroom sink'. Count the occurrences of the word 'white' in the given sentence.

Ex Output:
1


Ex Input:
Sentence: 'a hot dog that is sitting on a plate'. Count the occurrences of the word 'a' in the given sentence.

Ex Output:

2