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

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

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