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

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

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