*SUPPORT*
IN: fep blicket zup kiki lug OUT: PURPLE RED PURPLE RED GREEN GREEN PURPLE RED
IN: fep OUT: GREEN
IN: lug OUT: PURPLE
IN: lug gazzer fep OUT: PURPLE GREEN PURPLE
IN: dax zup OUT: BLUE RED
IN: dax gazzer dax OUT: BLUE BLUE BLUE
IN: zup kiki zup OUT: RED RED
IN: dax gazzer zup OUT: BLUE RED BLUE
IN: dax OUT: BLUE
IN: fep gazzer zup OUT: GREEN RED GREEN
IN: fep gazzer fep OUT: GREEN GREEN GREEN
IN: dax zup kiki lug OUT: BLUE PURPLE RED
IN: lug dax gazzer fep OUT: PURPLE BLUE GREEN BLUE
IN: fep blicket lug zup OUT: PURPLE RED PURPLE RED GREEN GREEN PURPLE RED

*QUERY*
IN: dax kiki lug OUT: PURPLE BLUE
IN: lug zup kiki fep OUT: PURPLE GREEN RED
IN: zup dax fep gazzer zup OUT: RED BLUE GREEN RED GREEN
IN: lug blicket fep kiki fep OUT: GREEN GREEN GREEN GREEN PURPLE PURPLE GREEN GREEN
IN: fep kiki lug OUT: PURPLE GREEN
IN: dax kiki zup OUT: RED BLUE
IN: zup blicket fep OUT: GREEN GREEN RED RED GREEN
IN: zup OUT: RED
IN: lug blicket lug kiki dax OUT: BLUE PURPLE BLUE PURPLE PURPLE PURPLE BLUE PURPLE
IN: zup kiki dax OUT: BLUE RED

*GRAMMAR*
dax -> BLUE 
 lug -> PURPLE 
 zup -> RED 
 fep -> GREEN 
 u1 gazzer u2 -> [u1] [u2] [u1] 
 u1 blicket x1 -> [x1] [x1] [u1] [u1] [x1] 
 u1 kiki u2 -> [u2] [u1] 
 u1 x1 -> [u1] [x1] 
 