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

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

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