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

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

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