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

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

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