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

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

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