# High-Resolution Radio Observations of Five Optically Selected Type 2 [PERSON]
## 6 Conclusions  
In this paper, we present 1.7- and 5-GHz EVN observations of five LLAGNs selected by their spectral (inverted-spectrum) and morphological (double-lobed symmetric) properties from [11]. Out of the five sources, only one (SDSS J1026\(-\)0042) was firmly detected with the EVN at both frequencies. It has a compact mas-scale VLBI core. The compact radio emission is a result of AGN activity. The other four sources (J0741\(+\)3020, J0956\(+\)5735, J1014\(+\)0244, and J1447\(+\)0211) are marginally detected at 1.7 GHz but not detected at 5 GHz with the EVN. It is consistent with dominantly extended, steep-spectrum radio emission in these objects. With the help of VLASS data, we revised the radio spectral index for our five target sources. We found that they have flat or steep spectra between 1.4 and 2.7 GHz, contrary to the inverted spectra reported earlier [11]. The revised overall spectral properties are consistent with the outcome of the EVN observations, as the only flat-spectrum source (SDSS J1026\(-\)0042) contains a compact VLBI core. Based on our results, we suspect that spectral indices for at least some other inverted-spectrum LLAGNs found by [PERSON] [11] may need to be revised. This could be done using new survey data becoming available such as those from the VLASS. Because of the dubious sample selection, the applicability of our proposed method to find kpc-scale dual AGNs by targeting truly inverted-spectrum arcsec-scale symmetric double extragalactic radio sources with high-resolution VLBI imaging observations remains to be proven. Conceptualization and investigation, Z.P., R.D., and S.F. ; Formal analysis, M.K. and S.F. ; Writing--Original draft preparation, M.K. and S.F. ; and writing--review and editing, Z.P. and R.D. All authors have read and agreed to the published version of the manuscript. The research leading to these results has received funding from the European Commission Seventh Framework Programme (FP/2007-2013) under grant agreement No. 283393 (RadioNet3). This work is part of the project \"Transient Astrophysical Objects\" GINOP 2.3.2-15-2016-00033 of the National Research, Development and Innovation Office (NKFIH), Hungary, funded by the European Union. **Acknowledgments:** The EVN is a joint facility of independent European, African, Asian, and North American radio astronomy institutes. Scientific results from data presented in this publication were derived from the project EP093. The National Radio Astronomy Observatory is a facility of the National Science Foundation operated under cooperative agreement by Associated Universities, Inc. This research has made use of the NASA/IPAC Extragalactic Database (NED), which is funded by the National Aeronautics and Space Administration and operated by the California Institute of Technology. Funding for the SDSS and SDSS-II has been provided by the Alfred P. Sloan Foundation, the Participating Institutions, the National Science Foundation, the U.S. Department of Energy, the National Aeronautics and Space Administration, the Japanese Monbukagakusho, the Max Planck Society, and the Higher Education Funding Council for England. The SDSS Web Site is [[http://www.sdss.org/](http://www.sdss.org/)]([http://www.sdss.org/](http://www.sdss.org/)). The SDSS is managed by the Astrophysical Research Consortium for the Participating Institutions.