Plotting a Legend on a Graph

I have some code for the following plot: however, when I try to introduce the legend for some reason it gives properties A and B for a square in both cases even though the plots includes points which are circles and others which are squares.

figure
% plot(Rv, ur(Rm,Knm))
 hold on
  plot(0.0014,403.07,'bs')
%  plot(0.00008875,403.07,'bs')
  plot(0.0014,662.18,'bs')
  plot(0.0007 ,662.18,'bs')
 plot(0.0014 ,878.11,'bs')
 plot( 0.0007, 878.11,'bs')
 plot(0.0014,1122.83,'bo')
 plot( 0.0007 ,1122.83,'bs')
 plot(0.0014 , 1317.16,'bo')
 plot(0.0007,1317.16,'bs')
 plot(0.00056,1317.16,'bs')
plot(0.000866,1317.16,'bo')
plot(0.001057,1317.16,'bo')
plot(0.0014 ,1662.65,'bo')
plot(0.0007044,1662.65,'bs')
plot(0.000563,1662.65,'bs')
plot(0.0004226,1662.65,'bs')
plot(0.0002817,1662.65,'bs')
plot(0.0001409,1662.65,'bs')
plot(0.001409,2152.09,'bo')
plot(0.0007044,2152.09,'bo')
plot(0.000563,2152.09,'bs')
plot(0.0004226,2152.09,'bs')
plot(0.0002817,2152.09,'bs')
plot(0.0002113,2152.09,'bs')
plot(0.0001409,2152.09,'bs')
plot(0.001427,2545.36,'bo')
plot(0.001427,2459.07,'bo')
plot(0.001427,2214.61,'bo')
plot(0.001427,9958.53,'bo')
plot(0.001427,9563.07,'bo')
plot(0.001427,9390,'bo')
plot(0.001427,9045,'bo')
plot(0.0008452,10152,'bo')
plot(0.0007043,10152,'bo')
plot(0.0005635,10152,'bo')
plot(0.0004226,10152,'bo')
plot(0.0002817,10152,'bo')
plot(0.0008452,9239,'bo')
plot(0.0007043,9239,'bo')
plot(0.0005635,9239,'bo')
plot(0.0004226,9239,'bo')
plot(0.0002817,9239,'bo')

grid

%lgdc = sprintfc('K_n = %3.1f', Knv);
lgd = legend('A','B');

Answer 1

[KSSV]

A = [0.0014,403.07,
0.00008875,403.07,
0.0014,662.18,
0.0007 ,662.18,
0.0014 ,878.11,
0.0007, 878.11,
0.0007 ,1122.83,
0.0007,1317.16,
0.00056,1317.16,
0.0007044,1662.65,
0.000563,1662.65,
0.0004226,1662.65,
0.0002817,1662.65,
0.0001409,1662.65,
0.000563,2152.09,
0.0004226,2152.09,
0.0002817,2152.09,
0.0002113,2152.09,
0.0001409,2152.09] ;
 
B = [0.0014,1122.83,
0.0014 , 1317.16,
0.000866,1317.16,
0.001057,1317.16,
0.0014 ,1662.65,
0.001409,2152.09,
0.0007044,2152.09,
0.001427,2545.36,
0.001427,2459.07,
0.001427,2214.61,
0.001427,9958.53,
0.001427,9563.07,
0.001427,9390,
0.001427,9045,
0.0008452,10152,
0.0007043,10152,
0.0005635,10152,
0.0004226,10152,
0.0002817,10152,
0.0008452,9239,
0.0007043,9239,
0.0005635,9239,
0.0004226,9239,
0.0002817,9239] ;

figure
hold on
plot(A(:,1),A(:,2),'bs')
plot(B(:,1),B(:,2),'bo')
legend('A','B')