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

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

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