*SUPPORT*
IN: lug dax OUT: BLUE BLUE
IN: tufa gazzer OUT: YELLOW YELLOW
IN: lug gazzer OUT: BLUE BLUE
IN: wif OUT: GREEN
IN: kiki OUT: PURPLE
IN: lug tufa OUT: BLUE YELLOW
IN: tufa OUT: YELLOW
IN: tufa lug gazzer OUT: YELLOW BLUE BLUE
IN: kiki gazzer OUT: PURPLE PURPLE
IN: kiki wif OUT: PURPLE GREEN
IN: lug OUT: BLUE
IN: tufa dax OUT: YELLOW YELLOW
IN: lug kiki gazzer OUT: BLUE PURPLE PURPLE
IN: tufa dax fep tufa dax OUT: YELLOW YELLOW YELLOW YELLOW YELLOW YELLOW

*QUERY*
IN: kiki dax OUT: PURPLE PURPLE
IN: wif dax fep tufa dax OUT: GREEN GREEN YELLOW YELLOW YELLOW YELLOW
IN: wif dax fep kiki gazzer OUT: GREEN GREEN PURPLE PURPLE PURPLE PURPLE
IN: kiki lug gazzer OUT: PURPLE BLUE BLUE
IN: wif kiki gazzer OUT: GREEN PURPLE PURPLE
IN: tufa fep tufa gazzer fep kiki OUT: YELLOW YELLOW YELLOW YELLOW YELLOW PURPLE PURPLE
IN: wif fep wif gazzer OUT: GREEN GREEN GREEN GREEN GREEN
IN: wif gazzer OUT: GREEN GREEN
IN: kiki lug OUT: PURPLE BLUE
IN: tufa kiki dax OUT: YELLOW PURPLE PURPLE

*GRAMMAR*
tufa -> YELLOW 
 lug -> BLUE 
 kiki -> PURPLE 
 wif -> GREEN 
 u1 dax -> [u1] [u1] 
 u1 gazzer -> [u1] [u1] 
 x1 fep x2 -> [x1] [x2] [x2] 
 u1 x1 -> [u1] [x1] 
 