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

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

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