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

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

*GRAMMAR*
wif -> PURPLE 
 lug -> YELLOW 
 fep -> GREEN 
 dax -> RED 
 u1 kiki u2 -> [u2] [u2] [u1] [u1] 
 x1 zup x2 -> [x1] [x2] [x1] [x2] [x1] 
 u1 tufa -> [u1] [u1] [u1] [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 