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

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

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