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

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

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