According to the poll, there are the following options:
1) If the first answer is false, then the role of the person being questioned is Lord of the Abyss/Brunhilda.
2) If the second answer is false, then the role of the person being questioned is Mariette.
3) If the third answer is false, then the role of the person being questioned is Lugus/Torment.
1) Lugus is also a possibility; he has a sword.
2) I agree.
3) And here, it's Karl, Horror, Offspring.
In general, among the townspeople, only Lugus and Mariette. Among the negatives, it could be anyone, including a maniac.
If we approach it purely mathematically and consider the true/false options to be equally likely (33% for each), then we get:
1) 0.33 * 0.33 ~= 10% chance of being peaceful.
2) 0.33 * 1 = 33% chance of being peaceful.
3) 0.33 * 0 = 0% chance of being peaceful.
That's 43% chance of being peaceful. I think that's not bad, considering the 11/6 ratio.