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

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

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