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

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

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