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

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

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