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

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

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