*SUPPORT*
IN: wif zup OUT: PINK PINK
IN: tufa kiki OUT: YELLOW PURPLE
IN: kiki tufa zup OUT: PURPLE YELLOW PURPLE YELLOW
IN: tufa zup dax fep OUT: RED YELLOW YELLOW
IN: tufa zup OUT: YELLOW YELLOW
IN: wif lug OUT: PINK PINK
IN: tufa kiki zup lug OUT: YELLOW PURPLE YELLOW PURPLE YELLOW PURPLE YELLOW PURPLE
IN: tufa lug OUT: YELLOW YELLOW
IN: kiki OUT: PURPLE
IN: tufa dax wif lug OUT: PINK YELLOW PINK YELLOW
IN: fep zup OUT: RED RED
IN: fep OUT: RED
IN: wif OUT: PINK
IN: fep zup lug OUT: RED RED RED RED

*QUERY*
IN: kiki dax fep OUT: RED PURPLE
IN: wif kiki zup OUT: PINK PURPLE PINK PURPLE
IN: wif tufa zup OUT: PINK YELLOW PINK YELLOW
IN: wif fep OUT: PINK RED
IN: wif dax fep dax wif lug OUT: PINK RED PINK PINK RED PINK
IN: fep wif OUT: RED PINK
IN: kiki tufa OUT: PURPLE YELLOW
IN: kiki dax tufa zup OUT: YELLOW YELLOW PURPLE
IN: wif tufa OUT: PINK YELLOW
IN: tufa OUT: YELLOW

*GRAMMAR*
fep -> RED 
 tufa -> YELLOW 
 wif -> PINK 
 kiki -> PURPLE 
 x1 lug -> [x1] [x1] 
 x1 dax x2 -> [x2] [x1] 
 x1 zup -> [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 