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

Ex Input:
Sentence: 'black and white photo of a person with an umbrella on a dock'. Count the occurrences of the word 'a' in the given sentence.

Ex Output:
2


Ex Input:
Sentence: 'two people kissing and two people mocking them'. Count the occurrences of the word 'people' in the given sentence.

Ex Output:
2


Ex Input:
Sentence: 'a dog eats out of a bowl on a mat on a wood floor'. Count the occurrences of the word 'a' in the given sentence.

Ex Output:

4