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

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

*GRAMMAR*
blicket -> BLUE 
 lug -> YELLOW 
 dax -> GREEN 
 fep -> RED 
 u1 tufa u2 -> [u1] [u2] [u2] [u1] [u1] 
 x1 kiki x2 -> [x2] [x1] [x2] 
 u1 gazzer -> [u1] [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 