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

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

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