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

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

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