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What is the meaning of な in the following sentence?

> この動画に映り込んでる背景は僕の家 **な** 気がする。

Is it an abbreviation of なんて or なんか? Or is it simply a filler as explained in
[this answer](https://japanese.stackexchange.com/a/28006/17797)?
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2018-03-31T16:27:18.553
57648
2018-03-31T16:56:41.890
17797
question
grammar particles nouns particle-な
Usage of な in this sentence
In this sentence, you can replace 「な気がする」 by 「である気がする」.

→ "I have the feeling that this video's background is my house"
CC BY-SA 3.0
2018-03-31T16:56:41.890
57650
2018-03-31T16:56:41.890
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answer