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

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

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