Definition: 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: Sentence: 'a necktie wearing man with an afro stands by the street and poses for a picture'. Remove all words of length '6' in the given sentence.

a necktie wearing man with an afro by the and poses for a picture