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

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

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