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

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

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