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

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

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