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

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

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