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

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

*GRAMMAR*
zup -> PURPLE 
 dax -> BLUE 
 lug -> GREEN 
 fep -> RED 
 x1 kiki x2 -> [x2] [x2] [x2] [x1] 
 u1 tufa u2 -> [u2] [u1] [u1] 
 x1 gazzer u1 -> [u1] [x1] 
 u1 x1 -> [u1] [x1] 
 