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

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

*GRAMMAR*
tufa -> PURPLE 
 fep -> BLUE 
 wif -> RED 
 lug -> YELLOW 
 x1 zup -> [x1] [x1] 
 u1 gazzer u2 -> [u1] [u2] 
 x1 dax x2 -> [x1] [x2] 
 u1 x1 -> [u1] [x1] 
 