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

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

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