*SUPPORT*
IN: zup OUT: PINK
IN: dax fep dax OUT: RED RED
IN: dax zup dax lug OUT: RED PINK RED RED RED
IN: zup lug OUT: PINK PINK PINK
IN: wif kiki OUT: YELLOW YELLOW
IN: zup fep zup lug OUT: PINK PINK PINK PINK
IN: wif fep dax kiki OUT: RED RED YELLOW
IN: wif OUT: YELLOW
IN: gazzer OUT: GREEN
IN: dax wif lug OUT: RED YELLOW YELLOW YELLOW
IN: gazzer kiki OUT: GREEN GREEN
IN: dax dax OUT: RED RED
IN: dax lug OUT: RED RED RED
IN: wif lug OUT: YELLOW YELLOW YELLOW

*QUERY*
IN: gazzer lug OUT: GREEN GREEN GREEN
IN: gazzer gazzer OUT: GREEN GREEN
IN: dax OUT: RED
IN: dax fep gazzer kiki OUT: GREEN GREEN RED
IN: gazzer fep zup OUT: PINK GREEN
IN: dax zup kiki OUT: RED PINK PINK
IN: wif fep gazzer fep dax OUT: RED GREEN YELLOW
IN: wif fep wif lug OUT: YELLOW YELLOW YELLOW YELLOW
IN: zup fep dax lug OUT: RED RED RED PINK
IN: zup kiki OUT: PINK PINK

*GRAMMAR*
wif -> YELLOW 
 gazzer -> GREEN 
 dax -> RED 
 zup -> PINK 
 u1 fep x1 -> [x1] [u1] 
 u1 lug -> [u1] [u1] [u1] 
 u1 kiki -> [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 