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

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

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