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

Ex Input:
Sentence: 'a woman sitting at a table holding a hot dog up to her mouth'. Count the occurrences of the word 'a' in the given sentence.

Ex Output:
3


Ex Input:
Sentence: 'a cake with chocolate frosting and a cake with white frosting are each in an open box'. Count the occurrences of the word 'frosting' in the given sentence.

Ex Output:
2


Ex Input:
Sentence: 'young teenage boy on his skateboard on the street with people on the curb'. Count the occurrences of the word 'on' in the given sentence.

Ex Output:

3