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

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

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