*SUPPORT*
IN: fep dax kiki OUT: RED GREEN
IN: kiki tufa gazzer OUT: RED YELLOW YELLOW
IN: wif kiki fep gazzer OUT: BLUE RED GREEN GREEN
IN: fep tufa wif OUT: GREEN YELLOW BLUE
IN: wif OUT: BLUE
IN: kiki gazzer OUT: RED RED
IN: tufa wif wif OUT: YELLOW BLUE BLUE
IN: tufa gazzer OUT: YELLOW YELLOW
IN: tufa OUT: YELLOW
IN: tufa dax kiki OUT: RED YELLOW
IN: fep gazzer OUT: GREEN GREEN
IN: kiki blicket OUT: RED RED
IN: fep fep gazzer OUT: GREEN GREEN GREEN
IN: fep OUT: GREEN

*QUERY*
IN: tufa blicket OUT: YELLOW YELLOW
IN: wif blicket OUT: BLUE BLUE
IN: tufa wif OUT: YELLOW BLUE
IN: wif dax tufa OUT: YELLOW BLUE
IN: wif wif wif wif gazzer OUT: BLUE BLUE BLUE BLUE BLUE
IN: kiki OUT: RED
IN: kiki tufa blicket OUT: RED YELLOW YELLOW
IN: wif gazzer OUT: BLUE BLUE
IN: fep wif gazzer OUT: GREEN BLUE BLUE
IN: fep fep fep fep blicket OUT: GREEN GREEN GREEN GREEN GREEN

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