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

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

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