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

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

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