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

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

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