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

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

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