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

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

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