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

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

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