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

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

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