In this task, you are given a sentence and question which can be answered using the sentence. Your task is to answer the question using the information from the sentence. The answer to the question is unique and it is a continuous text span from the sentence.

Sentence: Since there was nothing objectionable in it , most likely it was somehow lost by Bentley 's printer when the '' Etymology '' and '' Extracts '' were moved .
Question: when might something have been lost?
when the '' Etymology '' and '' Extracts '' were moved