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

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

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