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.

Input: Consider Input: Sentence: 'a row of park benches sitting next to a park'. Remove all words of length '7' in the given sentence.

Output: a row of park next to a park


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

Output: a very nice train in the dark


Input: Consider Input: Sentence: 'two people helping and elderly woman to her seat'. Remove all words of length '3' in the given sentence.


Output: people helping elderly woman to seat