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

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

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