\begin{table}%t3 \caption{\label{b2}Properties of the B2 sample.} \par %\centerline { \begin{tabular}{l | c c c c} \hline\hline Name & $F_{\rm 1.4~GHz}$ & $F_{\rm core}$ & $F_{\rm [O~III]}$ & $P_{\rm c}$ \\ \hline B2~0055+30 & 30.93$^{a}$ & 30.46 & 39.45$^{a}$ & 0.34 \\ B2~0222+36 & 30.60$^{b}$ & 30.46 & 40.63$^{b}$ & 0.72 \\ B2~0722+30 & 29.93$^{c}$ & 29.55 & $-$ & 0.42 \\ B2~1101+38 & 31.18$^{d}$ & 31.04 & 40.54$^{c}$ & 0.72 \\ B2~1557+26 & 30.67$^{a}$ & 30.06 & 39.64$^{d}$ & 0.25 \\ B2~1638+32 & 32.11$^{a}$ & 31.38 & 40.59$^{d}$ & 0.19 \\ B2~1652+39A & 31.53$^{d}$ & 31.43 & 40.65$^{e}$ & 0.79 \\ B2~2116+26 & 30.03$^{d}$ & 29.38 & 39.44$^{f}$ & 0.22 \\ \hline \end{tabular}} \par \medskip Column description: (1) name; (2) total luminosity at 1.4 GHz in \ergsHz. Reference: (a) \citet{white92}; (b) \citet{condon98}; (c) \citet{FIRST}; (d) \citet{condon02}; (3) core luminosity at 5 GHz in \ergsHz\ from \citet{giovannini88}; (4)~nuclear [O~III] luminosity in erg s$^{-1}$. Reference: (a) \citet{ho97}; (b)~Buttiglione et al. (2010); (c) [O~III] equivalent width from \citet{jansen00} and $\lambda$5007 continuum from \citet{marcha96}; (d) from SDSS spectrum; (e) from Ha + [N~II] measurement of \citet{marcha96} adopting [O~III]/(H$\alpha$ + [N~II]) $\sim$ 0.38 (H$\alpha$/[O~III] = 1 and [N~II]/H$\alpha$ = 1.6) \citep{buttiglione09b}; (f) from H$\alpha$ + [N~II] image \citep{capetti:cccriga} with emission line ratios specified above; (5)~core dominance, $P_{\rm c} = P_{\rm core}/L_{1.4}$.\vspace*{-2.5mm} \end{table}