In this task, you need to count the number of words in a sentence that contain the given letter

Ex Input:
Sentence: 'a basket that is full of fruits and vegetables'. How many words contain the letter 'v' in the sentence.

Ex Output:
1


Ex Input:
Sentence: 'a red car parked with a gas pump inserted into it'. How many words contain the letter 'l' in the sentence.

Ex Output:
0


Ex Input:
Sentence: 'a small airplane getting ready to take off in field'. How many words contain the letter 'x' in the sentence.

Ex Output:

0