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

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

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