*SUPPORT*
IN: fep OUT: RED
IN: fep kiki OUT: RED RED RED RED RED
IN: zup wif OUT: GREEN YELLOW
IN: fep gazzer OUT: RED BLUE
IN: wif lug gazzer lug fep OUT: RED BLUE YELLOW
IN: gazzer kiki OUT: BLUE BLUE BLUE BLUE BLUE
IN: wif zup lug wif OUT: YELLOW YELLOW GREEN
IN: zup dax fep OUT: GREEN RED GREEN RED
IN: gazzer wif OUT: BLUE YELLOW
IN: wif fep OUT: YELLOW RED
IN: zup fep OUT: GREEN RED
IN: wif OUT: YELLOW
IN: zup OUT: GREEN
IN: gazzer OUT: BLUE

*QUERY*
IN: wif wif OUT: YELLOW YELLOW
IN: gazzer wif zup OUT: BLUE YELLOW GREEN
IN: fep gazzer lug wif OUT: YELLOW RED BLUE
IN: wif gazzer wif OUT: YELLOW BLUE YELLOW
IN: gazzer zup OUT: BLUE GREEN
IN: fep fep OUT: RED RED
IN: gazzer gazzer OUT: BLUE BLUE
IN: wif kiki OUT: YELLOW YELLOW YELLOW YELLOW YELLOW
IN: fep lug gazzer OUT: BLUE RED
IN: zup kiki OUT: GREEN GREEN GREEN GREEN GREEN

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