everything, as it went in:
  a dog, a pigeon, a newt, a moth
alphabetically:
  a dog, a moth, a newt, a pigeon
four legs:
  a dog, a newt
the first two, most legs first:
  a moth, a dog
a hundred legs: array, count 0
  so ask `if count(rows) = 0`, and say so yourself.

count(*) as total:  [{"total":4}]
and where none match: [{"total":0}]
  a counting question always answers, with one row in it
