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

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

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