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

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

*GRAMMAR*
gazzer -> YELLOW 
 blicket -> BLUE 
 wif -> RED 
 fep -> GREEN 
 x1 dax x2 -> [x1] [x2] [x1] 
 x1 tufa -> [x1] [x1] 
 u1 zup u2 -> [u1] [u2] 
 u1 x1 -> [u1] [x1] 
 