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

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

*GRAMMAR*
kiki -> BLUE 
 tufa -> RED 
 fep -> PURPLE 
 zup -> GREEN 
 u1 lug -> [u1] [u1] 
 x1 dax -> [x1] [x1] [x1] 
 u1 wif u2 -> [u2] [u1] 
 u1 x1 -> [u1] [x1] 
 