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

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

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