*SUPPORT*
IN: tufa dax tufa OUT: PURPLE PURPLE PURPLE PURPLE PURPLE PURPLE
IN: lug OUT: RED
IN: zup tufa OUT: GREEN PURPLE
IN: tufa dax zup OUT: GREEN GREEN GREEN GREEN PURPLE GREEN
IN: lug gazzer zup OUT: RED GREEN
IN: tufa gazzer lug OUT: PURPLE RED
IN: tufa fep gazzer lug OUT: PURPLE YELLOW RED
IN: zup OUT: GREEN
IN: zup blicket zup gazzer fep OUT: GREEN GREEN YELLOW GREEN
IN: zup zup gazzer zup OUT: GREEN GREEN GREEN
IN: zup gazzer fep OUT: GREEN YELLOW
IN: lug gazzer lug OUT: RED RED
IN: lug dax lug OUT: RED RED RED RED RED RED
IN: fep dax lug OUT: RED RED RED RED YELLOW RED

*QUERY*
IN: lug dax fep OUT: YELLOW YELLOW YELLOW YELLOW RED YELLOW
IN: zup tufa dax tufa OUT: GREEN PURPLE PURPLE PURPLE PURPLE PURPLE PURPLE
IN: zup zup OUT: GREEN GREEN
IN: zup gazzer fep blicket tufa gazzer lug OUT: GREEN YELLOW PURPLE RED GREEN YELLOW
IN: fep gazzer tufa OUT: YELLOW PURPLE
IN: lug gazzer tufa OUT: RED PURPLE
IN: tufa fep dax zup OUT: PURPLE GREEN GREEN GREEN GREEN YELLOW GREEN
IN: tufa dax fep OUT: YELLOW YELLOW YELLOW YELLOW PURPLE YELLOW
IN: lug gazzer fep OUT: RED YELLOW
IN: fep OUT: YELLOW

*GRAMMAR*
fep -> YELLOW 
 lug -> RED 
 zup -> GREEN 
 tufa -> PURPLE 
 u1 dax u2 -> [u2] [u2] [u2] [u2] [u1] [u2] 
 x1 blicket x2 -> [x1] [x2] [x1] 
 u1 gazzer u2 -> [u1] [u2] 
 u1 x1 -> [u1] [x1] 
 