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

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

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