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

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

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