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

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

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