*SUPPORT*
IN: tufa OUT: PURPLE
IN: gazzer OUT: YELLOW
IN: zup blicket zup OUT: BLUE BLUE
IN: tufa blicket zup OUT: PURPLE BLUE
IN: gazzer zup blicket kiki OUT: YELLOW BLUE GREEN
IN: tufa blicket gazzer OUT: PURPLE YELLOW
IN: zup blicket kiki OUT: BLUE GREEN
IN: kiki blicket tufa OUT: GREEN PURPLE
IN: kiki blicket kiki OUT: GREEN GREEN
IN: kiki fep kiki OUT: GREEN GREEN GREEN GREEN
IN: tufa gazzer blicket gazzer OUT: PURPLE YELLOW YELLOW
IN: gazzer dax kiki OUT: GREEN YELLOW
IN: tufa tufa dax zup OUT: PURPLE BLUE PURPLE
IN: zup fep zup OUT: BLUE BLUE BLUE BLUE

*QUERY*
IN: zup dax zup OUT: BLUE BLUE
IN: zup OUT: BLUE
IN: tufa kiki fep gazzer tufa OUT: PURPLE YELLOW PURPLE GREEN GREEN YELLOW PURPLE
IN: kiki zup blicket gazzer OUT: GREEN BLUE YELLOW
IN: tufa fep tufa kiki OUT: PURPLE GREEN PURPLE PURPLE PURPLE GREEN
IN: tufa blicket tufa OUT: PURPLE PURPLE
IN: gazzer dax gazzer OUT: YELLOW YELLOW
IN: zup zup OUT: BLUE BLUE
IN: kiki OUT: GREEN
IN: kiki dax zup OUT: BLUE GREEN

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