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

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

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