"a" ++ "b" ++ "c"
param_table.Q1
param_table.Q2
param_table.Q1
param_table.Q2
param_table.Q2
param_table.Q1
param_table.Q2
param_table.Q1
param_table.Q1
param_table.Q2
"start" ++ "abc" ++ "end"
"start" ++ "xyz" ++ "end"
"zero"
"def"
"?"
"?"
"c" ++ "def" ++ "g"
"c" ++ "def" ++ "ghi"
"abc" ++ "def" ++ "g"
"abcdefghi"
"abcdefghi"
"aaaaxy"
"xy"
"xy"
param_table.Q1
param_table.Q2
\x -> case <x : Str> of {
        "q1" => param_table.Q1;
        _ => param_table.Q2
      }
pre {"в"; "във" / strs {"в"; "ф"}}