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

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

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