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

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

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