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

Ex Input:
Sentence: 'a group of people sitting around a dinner table'. Count the occurrences of the word 'people' in the given sentence.

Ex Output:
1


Ex Input:
Sentence: 'a man kneeling down next to a suitcase touching his necklace'. Count the occurrences of the word 'a' in the given sentence.

Ex Output:
2


Ex Input:
Sentence: 'a person flying a kite on a sunny day'. Count the occurrences of the word 'a' in the given sentence.

Ex Output:

3