First of all you'll need to open two side doors (On the left and on the rightof the robot), kill the droids there and access the computer in each one.
When accessing the computer choose: 1)Talk to the computer 2)Insert datapad 3)Talk to the copmputer
Then you'll be granted 6 choises. Read on the top what is the question of the copmuter:"Life ..." or "Death..." For life: Oceanic, Grassland, (don't remmember the word but it's supposed to be before the last one)