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

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

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