*SUPPORT*
IN: wif fep gazzer OUT: RED RED RED RED RED RED RED RED
IN: dax zup tufa fep OUT: PINK PINK YELLOW
IN: tufa zup wif OUT: RED PINK
IN: lug zup dax fep OUT: YELLOW YELLOW BLUE
IN: wif OUT: RED
IN: tufa fep OUT: PINK PINK
IN: tufa fep gazzer OUT: PINK PINK PINK PINK PINK PINK PINK PINK
IN: tufa gazzer OUT: PINK PINK PINK PINK
IN: lug lug OUT: BLUE BLUE
IN: lug fep OUT: BLUE BLUE
IN: wif fep OUT: RED RED
IN: lug wif zup dax zup wif OUT: BLUE RED YELLOW RED
IN: dax dax gazzer OUT: YELLOW YELLOW YELLOW YELLOW YELLOW YELLOW YELLOW YELLOW
IN: dax OUT: YELLOW

*QUERY*
IN: wif wif tufa fep OUT: RED RED PINK PINK
IN: lug OUT: BLUE
IN: dax tufa OUT: YELLOW PINK
IN: lug fep gazzer OUT: BLUE BLUE BLUE BLUE BLUE BLUE BLUE BLUE
IN: wif zup lug zup dax fep OUT: YELLOW YELLOW BLUE RED
IN: lug zup wif OUT: RED BLUE
IN: dax fep OUT: YELLOW YELLOW
IN: tufa OUT: PINK
IN: dax gazzer OUT: YELLOW YELLOW YELLOW YELLOW
IN: tufa zup tufa zup tufa zup lug gazzer OUT: BLUE BLUE BLUE BLUE PINK PINK PINK

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