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 box with three foot long hot dogs inside of it'. How many words start with the letter 'i' in the sentence.
2

Sentence: 'a hydrant is sitting outside in the dirt'. How many words start with the letter 'i' in the sentence.
2

Sentence: 'a view of two women and their luggage waiting to be picked up'. How many words start with the letter 'u' in the sentence.

1