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The UHF section is a simple UHF Yagi structure with a parasitic element that is probably there to flatten the bandwidth.
The VHF section, is not a Yagi as the two rear most elements are connected to each other with phasing lines which excludes that section from being a conventional Yagi but is rather a log-periodic design. The two long elements clipped to the underside of the boom are probably there for the same reason as the parasitic element on the UHF side.
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I agree.
The two long elements on the underside are parasitic directors for VHF-High, which would make the four rear elements a hybrid called a log-yagi for VHF-High.