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

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

*GRAMMAR*
lug -> GREEN 
 blicket -> PURPLE 
 zup -> RED 
 dax -> BLUE 
 u1 tufa x1 -> [x1] [u1] 
 x1 fep x2 -> [x1] [x2] 
 x1 kiki u1 -> [u1] [x1] [u1] 
 u1 x1 -> [u1] [x1] 
 