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

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

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