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

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

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