#63 - Example for frame annotation

- Very basic example

_example-projects/frame-annotation/index.md

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+---
+title: Frame annotation
+subheadline: Example project (SRL/events)
+permalink: /example-projects/frame-annotation/
+# screenshot: screenshot.png
+# thumbnail: screenshot-thumb.png
+example-project: Example+Frame+annotation_project_2021-01-24_2333.zip
+---
+
+This project provides a short introduction to modeling frame-like annotation tasks such as 
+semantic role labeling or event annotation.
+
+![projects_settings](frame_annotation.png)
+
+The two layers `SemPred` and `SemArg` are used to model the frame. First, a `SemPred` annotation is
+created on the words that trigger the frame. The arguments of the frame can then be linked up to
+this `SemPred` annotation by creating `SemArg` annotations on the words representing the arguments
+and linking them into the `arguments` feature of the `SemPred` annotation.
+
+To facilitate the annotation, the project includes a small set of constraint rules. There are two
+types of rules. The first type controls the `category` feature of the `SemPred` annotation based
+on the lemma of the trigger word. The second type of rules controls the slots of the `arguments`
+feature of the `SemPred` layer. To allow the constraints to work, the `category` and `arguments`
+feature have each been associated with a tagset.