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

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

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