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

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

*GRAMMAR*
kiki -> BLUE 
 dax -> PURPLE 
 lug -> RED 
 fep -> GREEN 
 x1 tufa -> [x1] [x1] 
 x1 gazzer x2 -> [x2] [x1] 
 u1 wif x1 -> [x1] [u1] 
 u1 x1 -> [u1] [x1] 
 