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

Ex Input:
Sentence: 'an over head shot of a young man skateboarding in a skate park'. Count the occurrences of the word 'a' in the given sentence.

Ex Output:
2


Ex Input:
Sentence: 'a golden furred dog chewing on a stuffed animal'. Count the occurrences of the word 'chewing' in the given sentence.

Ex Output:
1


Ex Input:
Sentence: 'a group of young males carrying surfboards near a wooded area'. Count the occurrences of the word 'a' in the given sentence.

Ex Output:

2