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

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

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