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

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

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