Your examples include complex instructions and questions, but for simple ON/OFF commands you can go far by pulling key words and ignoring sentence structure. Fo

Your examples include complex instructions and questions, but for simple ON/OFF commands you can go far by pulling key words and ignoring sentence structure. For example, pick out "on" "off" and "light" will work for "turn the light on", "turn off the light", "light on", "I want the light on", etc... Adding modifiers like "kitchen" or "all" can help specify which lights (your "Table lamp: on" example), regardless of how they're used. I'm not saying this a great solution, but it covers pretty much all the basic variations for simple commands and can run on anything.