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

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

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