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

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

*GRAMMAR*
tufa -> BLUE 
 wif -> RED 
 zup -> GREEN 
 gazzer -> PURPLE 
 u1 blicket x1 -> [u1] [x1] 
 x1 fep x2 -> [x2] [x2] [x1] [x2] 
 x1 dax -> [x1] [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 