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

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

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