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

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

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