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

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

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