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

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

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