22. A method for analyzing a document comprising a plurality of primitive elements, the method comprising: identifying different sets of lists for different columns of the document, each column ordered within the document based on a reading order; identifying a first list in a first column of the document that has an open end state; identifying a second list, in a second column of the document subsequent to the first column in the reading order, that has an open start state; determining that the first list in the first column continues as the second list in the second column of the document; and storing the first list and the second list as a single list structure associated with the document.
22. A method for analyzing a document comprising a plurality of primitive elements, the method comprising: identifying different sets of lists for different columns of the document, each column ordered within the document based on a reading order; identifying a first list in a first column of the document that has an open end state; identifying a second list, in a second column of the document subsequent to the first column in the reading order, that has an open start state; determining that the first list in the first column continues as the second list in the second column of the document; and storing the first list and the second list as a single list structure associated with the document. 23. The method of claim 22 , wherein an alignment, spacing and content of list items in the first list matches an alignment, spacing, and content of list items in the second list.