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

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

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