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

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

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