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

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

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