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

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

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