instruction:
In this task, you need to remove all words of a given length in the sentence. The number of letters in a word determine its length, for example, the length of the word "apple" is 5.
question:
Sentence: 'a black youth rides his skateboard over a footbridge'. Remove all words of length '4' in the given sentence.
answer:
a black youth rides his skateboard a footbridge


question:
Sentence: 'a bus leads traffic down a city street'. Remove all words of length '7' in the given sentence.
answer:
a bus leads down a city street


question:
Sentence: 'there is a child that is sleeping on the bench'. Remove all words of length '1' in the given sentence.
answer:

there is child that is sleeping on the bench