WISE color–color diagrams of the radio sources listed in Tables 2 and 3 that are associated with a known source with WISE colors available. The gray AGN region (W2 − W3 > 2.157; W1 − W2 > 0.315 × (W2 − W3) − 0.222) is from S. Mateos et al. (2012). The W2 − W3 color can be used to track galaxy morphology and star formation rate (SFR; T. H. Jarrett et al. 2017), with 2 < W2 − W3 < 3.5 for intermediate-type (disk) galaxies, and W2 − W3 > 3.5 for late-type disk galaxies (star-forming disks). We note that the left vertical limit of the AGN region in N. T. Palliyaguru et al. (2016) and G. Gürkan et al. (2014) is taken as 2.517, our value of 2.157 is quoted from S. Mateos et al. (2012).