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

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

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