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

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

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