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

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

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