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

Ex Input:
Sentence: 'a little kid skiing down a hill holding ski poles'. Count the occurrences of the word 'a' in the given sentence.

Ex Output:
2


Ex Input:
Sentence: 'a bathroom with a vanity mirror toilette and kitchen sink next to a shower'. Count the occurrences of the word 'a' in the given sentence.

Ex Output:
3


Ex Input:
Sentence: 'people are taking samples of wines in a room next to an outdoor area where people are sitting'. Count the occurrences of the word 'room' in the given sentence.

Ex Output:

1