For example:
Toxic = Demon
plmnko = Sorc
Hooker = Destined Girl
MMK = Normal Girl
Syphon = GG
Let's say the three goods claim their roles. What do the two evils do to survive? They each claim a role. (The timing of the role claims can be analyzed: would the evils be clever enough to claim a role in the dark? or wait to counter?)
Let's say Toxic claims DG, and plmnko claims GG. MMK is now cleared by virtue of no one countering her role. Now who did syphon view? Who did plmnko view? Maybe Syphon viewed Hooker as Not Demon, meaning that if you believe Syphon, then Toxic must be evil. (Is he more likely to be the demon or the sorceress? He did counter the DG - someone good would be very hesitant to lynch.)
What if plmnko then says she viewed Toxic and says he's not the Demon? Then plmnko has managed to signal to her evil ally that she's the sorceress. (Which player was willing to share their view first? How contrived does the second view sound? In this case, plmnko's view perfectly robs the village of certain information by countering Syphon's view. MMK needs to deduce the more likely scenario.)
There are more things to deduce an answer from if more information (be it true or false) is out there to analyze.