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

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

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