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

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

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