“…Subsequently, the entry of (i, j) in the reachability matrix was placed with '1' for V as the (i, j) entry in the SSIM, and the entry of (j, i) was set to '0'; the entry of (i, j) in the reachability matrix was placed with '0' for A as the (i, j) entry in the SSIM, and the entry of (j, i) was set to '1'; the entry of (i, j) in the reachability matrix was placed with '1' for X as the (i, j) entry in the SSIM, and the entry of (j, i) was also set to '1'; and the entry of (i, j) in the reachability matrix was placed with '0' for O as the (i, j) entry in the SSIM, and the entry of (j, i) was also set to '0', respectively (Mishra and Satapathy, 2020).…”