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

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

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