About analysis view Context Previous Next Query builder SVG tree Bracketed tree XML tree
For a given sentence the analysis view initially gives the ID number and a graphic view of the tree. The initial view is the “default” view, but there other other options described below. If the sentence has been accessed through a query, the focus of the query is highlighted in the displayed tree of the default view.
A tree view also gives navigation options: You can choose “Previous” to see the tree for the immediately preceding sentence or choose “Next” to see the tree for the immediately following sentence. You can choose “Context” to see the sentence in a list of all sentences in the source text with links to the trees for each sentence. You can choose “Query builder” to use the annotation as the basis for constructing a search expression. You can download a graphic file of the tree with “SVG tree”, a text file of the tree with “Bracketed tree”, or a text file of the tree with “XML tree”.
At the bottom of the page, you can access alternative views of the annotation from a drop-down menu of choices starting with “default”. After making a selection, click “Change mode”.
The following summarises the “default” tree view:
A click on the drop-down list under the tree allows for changing the tree view to, for example, an “indexed” view:
The “indexed” view gives a view of the tree structure with indexing information that specifies argument relationships and antecedence relationships (including big PRO). This gives explicit indexing of grammatical dependencies that the annotation leaves implicit.
Note that in the indexed view, conjunction is expressed overtly (rather than implicitly) by modifying the structure of the tree. For clause conjunction, when an overt subject does not appear in a non-final conjunct, a VP layer is created for all conjuncts. If an overt subject appears in a non-final conjunct, an IML layer is created for all conjuncts.
The “binarised” view shows the annotation information as a binarised tree. In this view all but the left-most elements of a phrase adjoin to the pre-terminal node of the head through an intermediate node IML (roughly analogous to X-bar), producing a binary tree.
The “dependency” view shows relations of phrases to a target word. A sentence may contain several target words. Each target word is displayed on its own line. The relationship of a phrase to its target is specified by a label. By default, analyses are displayed sentence by sentence. Clicking the “Discourse display” button merges analyses into one.
The “semantics” view shows a “Discourse Representation Structure” (DRS) generated from the grammatical relations expressed in the tree. The source text is displayed above the DRS. Clicking the “Switch to formula representation” button presents the analysis as a predicate logic expression.
The “eval” view shows the semantic calculation by which a first-order predicate logic expression is derived. To get back to the default view from this view, either choose “default” from the pull-down menu at the bottom of the page, or use the “back” button on your browser.
By default the analysis view presents an analysis of one sentence. It is possible to extend the analysis presentation to include immediately preceeding or immediately following sentences by clicking respectively (when available) the leftside up arrow, or the leftside down arrow. If analyses for more than one sentence are being shown, then it is possible to remove the first sentence from view with a rightside down arrow, or remove the last sentence from view with a rightside up arrow. From a display of multiple sentences, clicking on a sentence id changes the view to that isolated example. To display non-adjacent sentences, click the “Context“ button to open a view that permits sentences to be selected freely from a file. When multiple sentences are in view, download options are disabled.