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

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

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