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

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

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