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

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

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