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 small bird is on top of a branch'. Remove all words of length '6' in the given sentence.

Output: a small bird is on top of a


Input: Consider Input: Sentence: 'several orange trees with oranges are sitting in a store'. Remove all words of length '7' in the given sentence.

Output: orange trees with are in a store


Input: Consider Input: Sentence: 'a black cat that is staring at something'. Remove all words of length '7' in the given sentence.


Output: a black cat that is at something