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

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

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