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

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

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