  Inspired by the abundant experimental observation of axial-vector states, we
study whether the observed axial-vector states can be categorized into the
conventional axial-vector meson family. In this paper we carry out an analysis
based on the mass spectra and two-body Okubo-Zweig-Iizuka-allowed decays.
Besides testing the possible axial-vector meson assignments, we also predict
abundant information for their decays and the properties of some missing
axial-vector mesons, which are valuable for further experimental exploration of
the observed and predicted axial-vector mesons.
