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

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

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