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

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

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