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

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

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