Pmin=? [ F "two" ]
Pmax=? [ F "two" ]
Pmin=? [ F "three" ]
Pmax=? [ F "three" ]
Pmin=? [ F "four" ]
Pmax=? [ F "four" ]
Pmin=? [ F "five" ]
Pmax=? [ F "five" ]
Pmin=? [ F "six" ]
Pmax=? [ F "six" ]

Rmin=? [ F "done" ]
Rmax=? [ F "done" ]