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

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

*GRAMMAR*
dax -> BLUE 
 wif -> RED 
 fep -> GREEN 
 lug -> PINK 
 x1 blicket x2 -> [x2] [x1] 
 x1 gazzer u1 -> [x1] [u1] [x1] 
 u1 tufa u2 -> [u2] [u1] 
 u1 x1 -> [u1] [x1] 
 