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

Ex Input:
Sentence: 'a man standing in the doorway of a bus traveling down the road'. Count the occurrences of the word 'the' in the given sentence.

Ex Output:
2


Ex Input:
Sentence: 'a man with a neck tie is wearing a motorcycle helmet'. Count the occurrences of the word 'wearing' in the given sentence.

Ex Output:
1


Ex Input:
Sentence: 'a lamb front diagonal view laying in a shady area of sunny grass with front half of a sheep looking at camera on right side of photo'. Count the occurrences of the word 'a' in the given sentence.

Ex Output:

3