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

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

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