Hyouka: What does the words at the end of episodes mean?

there are sentences like "why didn't she ask EBA?" "the niece of time" "welcome to kanya festa!" at the end of every episode. i only watched 13 eps so i dont know maybe there's more. SO, i wonder what does "why didn't she ask EBA?" means, rather than the... show more there are sentences like
"why didn't she ask EBA?"
"the niece of time"
"welcome to kanya festa!"
at the end of every episode. i only watched 13 eps so i dont know maybe there's more.

SO, i wonder what does "why didn't she ask EBA?" means, rather than the other two. maybe "the niece of time" too, if you know what that is.
whats EBA anyway?
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