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

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

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