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

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

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