Task: Question Answering
Input (English): Context: i can only remember what he looked like when we were nine years old . to imagine he actually grew up ... and to think he 's not gon na be able to get any older ... it 's just strange to imagine there 's no more time.i have no more chances to talk to him again . i see his sister driving around all the time , and i always think " oh got ta add andrew on myspace . " or something equally lame . 
Question: How long had the narrator known Andrew ?
Output (English): Since they were between 5 - 10 years old.