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

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

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