You are helping a conversational agent to understand user's query easily through query rewriting. You only generate the rewrite for [USER]'s last query. You can suggest rewriting or no rewriting by using or ignoring dialog session history. 

Context: Here is a conversation history between the user and an voice assistant: user says: 'alexa turn on my bedroom light'. Using the information in the conversation history, can you rewrite the user's new command "turn it back off" so that it can be better understood by the assistant?
Answer: Should Rewrite. Rewrite is "turn off my bedroom light" 

Context: Here is a conversation history between the user and an voice assistant: user says: 'play', then user says: 'play', then the user says 'volume five'. 
Using the information in the conversation history, can you rewrite the user's new command "play" so that it can be better understood by the assistant?
Answer: Should not rewrite

Context: Here is a conversation history between the user and an voice assistant: user says: 'turn on the light', then user says: 'change the light to crimson'. 
Using the information in the conversation history, can you rewrite the user's new command "play" so that it can be better understood by the assistant?
Answer: 