For nearby terms `["a", "b", "c"]` we concatenated them into one
`"a b c"`. Instead we should leave the singletons as well:
`["a", "b", "b", "a b", "a c", "b c", "a b c"]`.

This will show good progress bar.

Doesn't compile yet.

This is somewhere in Flow.hs in types for ConduitT () a m ()
where m monad is IO.

NOTE This doesn't compile yet.

This still isn't optimal because in our code we use lists, so this
will fetch everything (using conduit), coerce into a list and then
process.

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E[wrixteecNSotdaetSutso r=i eFsa]t a[l(E)r]r
or, sqlErrorMsg = "une instruction insert ou update sur la table \194\171 context_node_ngrams \194\187 viole la contrainte de cl\195\169\n\195\169trang\195\168re \194\171 context_node_ngrams_context_id_fkey \194\187", sqlErrorDetail = "La cl\195\169 (context_id)=(135) n'est pas pr\195\169sente dans la table \194\171 nodes \194\187.", sqlErrorHint = ""}

This fixes an issue when article title contained XML (like <b> etc).

We don't need the IO monad there, just added a default date for
Duckling to make the parser.