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.

Ex Input:
Sentence: 'a street light with several street signs on it'. Remove all words of length '1' in the given sentence.

Ex Output:
street light with several street signs on it


Ex Input:
Sentence: 'a very nice looking train in the dark'. Remove all words of length '7' in the given sentence.

Ex Output:
a very nice train in the dark


Ex Input:
Sentence: 'a couple of soldiers riding on the back of brown horses'. Remove all words of length '1' in the given sentence.

Ex Output:

couple of soldiers riding on the back of brown horses