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

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

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