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

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

*GRAMMAR*
blicket -> BLUE 
 tufa -> PINK 
 dax -> RED 
 wif -> GREEN 
 x1 kiki x2 -> [x1] [x1] [x2] [x1] [x2] [x2] 
 u1 fep u2 -> [u1] [u2] 
 x1 gazzer -> [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 