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

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

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