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

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

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