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

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

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