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

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

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