Dear All,
I am looking for treebanks (of any kind; dependency, constituency, LFG,
HPSG, …) with good – preferably manual – unambiguous annotation of
coordinate structures, for any language.
A typical UD treebank does not have a good annotation of coordinations,
because vanilla UD does not distinguish between dependents of single
conjuncts, as in *I [came and [bought a book]]*, and shared dependents of
conjuncts, as in *I [[saw and bought] a book]*. Enhanced UD can in
principle make this distinction, but many EUD treebanks are automatically
converted from vanilla UD treebanks, so this information is also often not
available or not reliable. On the other hand, many constituency treebanks
(including PTB) do not have explicit information about governors of
coordinations (in *I bought John and Mary interesting books* the governor
of *John and Mary* is *bought* and not, say, *books*), and – perhaps
surprisingly – it is often not easy to guess the governor. So I am looking
for treebanks that wear both kinds of information – about shared dependents
and about governors – on their sleeves.
Thanks, best,
Adam P.