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

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

*GRAMMAR*
wif -> RED 
 zup -> BLUE 
 gazzer -> YELLOW 
 tufa -> GREEN 
 x1 fep -> [x1] [x1] [x1] 
 u1 lug u2 -> [u1] [u2] [u1] 
 u1 dax -> [u1] [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 