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

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

*GRAMMAR*
wif -> PURPLE 
 blicket -> GREEN 
 dax -> RED 
 tufa -> BLUE 
 x1 fep x2 -> [x2] [x1] 
 x1 lug u1 -> [u1] [x1] 
 x1 kiki -> [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 