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

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

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