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

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

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