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

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

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