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

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

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