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

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

*GRAMMAR*
gazzer -> RED 
 dax -> PINK 
 wif -> GREEN 
 fep -> YELLOW 
 x1 blicket x2 -> [x1] [x2] 
 u1 lug -> [u1] [u1] 
 x1 tufa u1 -> [x1] [x1] [u1] [x1] [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 