What is the name of the ghost who frequents the fifth-floor girls' bathroom?
Moaning Myrtle.
<s>[INST] <<SYS>> Answer as briefly as you can to the following question. You are required to give a one-shot answer: <</SYS>> What is the name of the ghost who frequents the fifth-floor girls' bathroom? [/INST] Moaning Myrtle. </s>