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

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

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