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

Ex Input:
Sentence: 'hotdogs and buns grilling on a charcoal grill'. Count the occurrences of the word 'grilling' in the given sentence.

Ex Output:
1


Ex Input:
Sentence: 'a man sitting at a table holding a glass of wine'. Count the occurrences of the word 'a' in the given sentence.

Ex Output:
3


Ex Input:
Sentence: 'the man in the dark suit stands in the dark room'. Count the occurrences of the word 'dark' in the given sentence.

Ex Output:

2