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

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

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