*SUPPORT*
IN: dax fep fep OUT: BLUE BLUE BLUE BLUE
IN: dax wif zup lug wif OUT: RED RED BLUE RED RED BLUE RED RED
IN: wif lug gazzer OUT: YELLOW YELLOW RED RED
IN: tufa fep OUT: PURPLE PURPLE
IN: tufa zup OUT: PURPLE PURPLE
IN: dax OUT: BLUE
IN: dax gazzer fep OUT: BLUE YELLOW BLUE YELLOW
IN: tufa OUT: PURPLE
IN: wif OUT: RED
IN: wif dax zup OUT: RED BLUE BLUE
IN: gazzer tufa zup OUT: YELLOW PURPLE PURPLE
IN: gazzer zup OUT: YELLOW YELLOW
IN: dax zup OUT: BLUE BLUE
IN: gazzer fep lug tufa OUT: PURPLE PURPLE YELLOW YELLOW YELLOW YELLOW

*QUERY*
IN: gazzer wif lug gazzer OUT: YELLOW YELLOW YELLOW RED YELLOW RED
IN: tufa lug wif OUT: RED RED PURPLE PURPLE
IN: gazzer zup fep OUT: YELLOW YELLOW YELLOW YELLOW
IN: gazzer lug tufa OUT: PURPLE PURPLE YELLOW YELLOW
IN: dax fep OUT: BLUE BLUE
IN: wif wif OUT: RED RED
IN: tufa lug gazzer OUT: YELLOW YELLOW PURPLE PURPLE
IN: wif zup fep fep OUT: RED RED RED RED RED RED RED RED
IN: wif wif gazzer fep OUT: RED RED YELLOW RED RED YELLOW
IN: wif zup OUT: RED RED

*GRAMMAR*
wif -> RED 
 gazzer -> YELLOW 
 dax -> BLUE 
 tufa -> PURPLE 
 x1 fep -> [x1] [x1] 
 x1 lug u1 -> [u1] [u1] [x1] [x1] 
 u1 zup -> [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 