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: 'young boy and girl are playing and the girl holding a white device with a cord'. Remove all words of length '1' in the given sentence.

young boy and girl are playing and the girl holding white device with cord