qualified:name: foo=1 bar=2
key 16:19 ^-^ foo
num 20:21 ^ 1
val 20:21 ^ 1
pair 16:21 ^---^ foo=1
key 22:25 ^-^ bar
num 26:27 ^ 2
val 26:27 ^ 2
pair 22:27 ^---^ bar=2