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

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

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