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

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

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