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

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

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