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

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

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