*SUPPORT*
IN: wif fep dax OUT: RED RED PINK
IN: lug dax fep wif OUT: YELLOW PINK PINK RED
IN: lug dax zup OUT: YELLOW RED YELLOW RED
IN: dax lug kiki lug OUT: RED YELLOW YELLOW YELLOW
IN: lug kiki dax OUT: RED RED YELLOW
IN: dax fep blicket OUT: PURPLE PURPLE RED
IN: blicket kiki wif OUT: PINK PINK PURPLE
IN: dax kiki lug OUT: YELLOW YELLOW RED
IN: lug zup OUT: YELLOW YELLOW
IN: wif OUT: PINK
IN: lug kiki lug OUT: YELLOW YELLOW YELLOW
IN: lug blicket OUT: YELLOW PURPLE
IN: lug blicket dax fep blicket OUT: YELLOW PURPLE PURPLE PURPLE RED
IN: dax fep dax zup OUT: RED RED RED RED RED RED

*QUERY*
IN: lug OUT: YELLOW
IN: lug fep lug zup OUT: YELLOW YELLOW YELLOW YELLOW YELLOW YELLOW
IN: wif kiki lug OUT: YELLOW YELLOW PINK
IN: wif dax zup OUT: PINK RED PINK RED
IN: blicket zup OUT: PURPLE PURPLE
IN: dax kiki blicket OUT: PURPLE PURPLE RED
IN: blicket OUT: PURPLE
IN: wif dax OUT: PINK RED
IN: lug kiki blicket OUT: PURPLE PURPLE YELLOW
IN: dax fep wif zup OUT: PINK PINK RED PINK PINK RED

*GRAMMAR*
wif -> PINK 
 blicket -> PURPLE 
 dax -> RED 
 lug -> YELLOW 
 u1 fep u2 -> [u2] [u2] [u1] 
 x1 zup -> [x1] [x1] 
 u1 kiki u2 -> [u2] [u2] [u1] 
 u1 x1 -> [u1] [x1] 
 