| 1 | Most were buried in secret mass graves. | |
| 2 | Now the reinforcement of the tomb pit slope is finished, the surface strength of rock slightly increases, and the case of rock fall decreases significantly. | |
| 3 | He also noted leathery, mummified tissue in the forearms and explained that this was because the person had been buried in the middle layer of a grave 12 to 14 feet deep. | |
| 4 | Even after as long as 20 years in the earth, bodies farther underground often contain fat and other soft tissue, while those closer to the top are reduced to bare bones. | |
| 5 | Two days after the German announcement of their find, General Sikorski, the prime minister of the Polish government-in-exile, discussed the murders with Winston Churchill. |