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

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

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