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

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

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