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

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

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