Interestingly, if we trace the temporal word string through this dependency structure, aligning words next to the words they are dependent on, we obtain a "helical" type of structure familiar from genome models, and in fact TAGs are being used to model genomes for very similar reasons.
the probabilistic model of repairs explored here seems to be most successful in identifying long repairs in which the reparandum and repair are similar enough to be unlikely to have been generated independently.