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

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

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