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

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

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