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

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

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