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

Ex Input:
Sentence: 'a group of people standing around a table under a light'. Count the occurrences of the word 'a' in the given sentence.

Ex Output:
3


Ex Input:
Sentence: 'a person in pajamas reading on a bed'. Count the occurrences of the word 'a' in the given sentence.

Ex Output:
2


Ex Input:
Sentence: 'a building near a large base ball bat leaning on a tip'. Count the occurrences of the word 'leaning' in the given sentence.

Ex Output:

1