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

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

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