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

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

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