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

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

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