\tr{}{abcd-ghij}{1234-7}{abcdefghijlmn}
\tr{}{d-gIhij}{4-7i}{map D-G and remove HIJ altogether, is what I say}
\tr{}{hij}{}{defghijklm}
\tr{cs}{a-zA-Z.}{ }{ *!* abolish *!* capital *!*  punishment}
\tr{}{a-z}{A-Z}{\tr{cd}{a-zA-Z.}{ }{ *!* abolish *!* capital *!*  punishment}}
\tr{c}{a-zA-Z.}{_}{  complement  with  neither  squash  nor  delete  }
\tr{s}{a-z}{a-z}{squash the bookkeeper}
\tr{s}{a-z}{A-Z}{squash the bookkeeper}
