In this task, you need to count the number of words in a sentence that start with the given letter. Answer with numbers and not words.

Sentence: 'a refrigerator a white cabinet a microwave and some blue walls'. How many words start with the letter 'b' in the sentence.
1

Sentence: 'a tall giraffe kissing the bark of a brown tree'. How many words start with the letter 'a' in the sentence.
2

Sentence: 'a cat sitting on a table underneath a tv'. How many words start with the letter 's' in the sentence.

1