%PDF-1.6 % 1 0 obj << /Type /Catalog /Version /1.6 /Pages 2 0 R /OCProperties 14 0 R /PageMode /UseOC >> endobj 13 0 obj << /Length 379 >> stream /OC /oc1 BDC BT /F1 14 Tf 80 700 Td (PDF 1.5: Optional Content Groups) Tj ET EMC /OC /oc2 BDC /DeviceRGB cs 0 1 0 sc BT /F2 12 Tf 80 600 Td (The earth is a sphere) Tj ET EMC /OC /oc3 BDC 1 0 0 sc BT /F2 12 Tf 80 500 Td (Alternative 1: The earth is a flat circle) Tj ET EMC /OC /oc4 BDC 0 0 1 sc BT /F2 12 Tf 80 450 Td (Alternative 2: The earth is a flat parallelogram) Tj ET EMC endstream endobj 16 0 obj << /Length 351 /Type /ObjStm /N 13 /Filter /FlateDecode /First 80 >> stream xRMO1+(&DIrV[R^5Y=ksm}p-KU>Wƭ֑bfҦTcx"=y@5?h endstream endobj 17 0 obj << /Length 51 /Root 1 0 R /ID [<4B8731BB5803404F11E854261435E4DC> <4B8731BB5803404F11E854261435E4DC>] /Type /XRef /Size 18 /Index [0 17] /W [1 2 1] /Filter /FlateDecode >> stream x DZIзW0 n<(hnpLmq3 endstream endobj startxref 1005 %%EOF