[ Tree (Cell 1:1 2:6 (NodeHeader (HeaderSection 1))) [ Tree (Cell 1:3 1:7 NodePara) [ Tree (Cell 1:3 1:7 (NodeToken (TokenText "sec1"))) [] ] , Tree (Cell 2:1 2:6 NodePara) [ Tree (Cell 2:1 2:6 (NodeToken (TokenText "text1"))) [] ] ] , Tree (Cell 3:1 3:7 (NodeHeader (HeaderSection 1))) [ Tree (Cell 3:3 3:7 NodePara) [ Tree (Cell 3:3 3:7 (NodeToken (TokenText "sec2"))) [] ] ] ]