You will be given a definition of a task first, then some input of the task.
In this task, we ask you to elaborate the sentence without changing its general meaning. You can do so by explaining further the input sentence, using more precise wording, adding qualifiers and auxiliary information etc.

In its shorter form it is European Convention on Human Rights ( ECHR ) .
Output:
The European Convention on Human Rights ( ECHR ) ( formally the Convention for the Protection of Human Rights and Fundamental Freedoms ) is an international convention to protect human rights and political freedoms in Europe .