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

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

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