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

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

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