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

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

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