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

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

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