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

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

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