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

Ex Input:
Sentence: 'a bed room with a large window and a neatly made bed'. Count the occurrences of the word 'a' in the given sentence.

Ex Output:
3


Ex Input:
Sentence: 'a group of people sitting around a table with wine glasses and plates'. Count the occurrences of the word 'group' in the given sentence.

Ex Output:
1


Ex Input:
Sentence: 'two people are riding an elephant through the water'. Count the occurrences of the word 'riding' in the given sentence.

Ex Output:

1