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

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

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