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

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

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