The node performs a transfer function operation based on {HEAD ~ the inputs} from {TAIL ~ the previous layer} and the delayed outputs 
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The node performs a transfer function operation based on { HEAD ~ the inputs } from { TAIL ~ the previous layer } and the delayed outputs
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH