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

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

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