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

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

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