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

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

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