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

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

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