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

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

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