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

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

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