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

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

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