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

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

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