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

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

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