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

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

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