This is the 9385th most frequent Japanese word.
社民党
"Social Democratic Party" (a political party in Japan).
In this sentence, '社民党' is used to refer to the specific political party known as the Social Democratic Party, connecting it to its policies.
社民党の政策について議論しています。
We are discussing the policies of the Social Democratic Party.
Here, '社民党' identifies the organization proposing the action towards policy reform.
社民党は教育改革を提案しました。
The Social Democratic Party proposed educational reforms.
In this sentence, '社民党' denotes the organizing entity of a gathering or event.