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

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

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