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

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

*GRAMMAR*
wif -> RED 
 fep -> BLUE 
 dax -> GREEN 
 kiki -> YELLOW 
 x1 lug x2 -> [x1] [x2] 
 u1 gazzer u2 -> [u1] [u1] [u2] [u1] 
 u1 zup u2 -> [u2] [u2] [u2] [u1] [u1] [u2] 
 u1 x1 -> [u1] [x1] 
 