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

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

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