Add new task for identifying implicit arguments

enthymeme page

Author: cmihaigabriel

_editions/2026/tasks/enthymeme.md

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+---
+# static info
+layout: task
+year: 2026
+hide: false
+
+# required info
+title: "Missing Pieces and Misinformation: Identifying social media posts with implicit messages (pilot task)"
+subtitle: Enthymeme
+blurb: "This task will release a data set of social media posts annotated with information about the type of arguments they contain. Specifically, the task is focused on identifying arguments arguments with implicit 
+premises or conclusions."
+---
+
+<!-- # please respect the structure below-->
+*See the [MediaEval 2026 webpage](https://multimediaeval.github.io/editions/2026/) for information on how to register and participate.*
+
+#### Task description
+
+This task will release a data set of social media posts annotated with information about the type of arguments they contain. Specifically, the task is focused on identifying arguments arguments with implicit premises 
+or conclusions, which are known [enthymemes](https://en.wikipedia.org/wiki/Enthymeme).
+
+More information about the task will be available here shortly.