The default sampling parameters are really not that hot for cases where there is nearly a unique correct answer-- bad luck will force to to ask wrong.
From that prompt I (a human) don't know if I should expect something like "Albert Einstein" or the straight answer, so higher temperature sampling can risk kicking it down a silly path.
I put the same prompt into the question-answering preset and it immediately answered
A: Justin Bieber.
So that suggests that the prompt and temperature (etc.) are relevant to getting the kind of behavior you want. But it didn't seem to have any trouble getting this right the first time with the appropriate preset.
The default sampling parameters are really not that hot for cases where there is nearly a unique correct answer-- bad luck will force to to ask wrong.
From that prompt I (a human) don't know if I should expect something like "Albert Einstein" or the straight answer, so higher temperature sampling can risk kicking it down a silly path.