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

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

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