MIT robots spell TRAMP correctly

Prof : Robo I, can you spell correctly TRAMP ?
Robo I : D E V I L
Prof : No, No, You are Wrong, Robo. I need..
Robo I : I am absolutely CORRECT.Ask Robo II.
Prof : Robo II , can you spell correctly TRAMP ?
Robo II : D E M O N 
Prof : No, No, You are Wrong, Robo. I need..
Robo II : I am absolutely CORRECT.Ask Robo II