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

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

*GRAMMAR*
dax -> PURPLE 
 fep -> GREEN 
 lug -> BLUE 
 tufa -> RED 
 u1 wif -> [u1] [u1] [u1] 
 u1 zup -> [u1] [u1] 
 x1 gazzer x2 -> [x1] [x2] 
 u1 x1 -> [u1] [x1] 
 