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a, the a, / the, an the, the
is able to has been able have been able are able to
assess explain describe investigate
the ; an was remained a; the the ; the
will be would be has been would have been
has could has been able to could was able to
Is able to has been able to have been able to are able to
has been will have been had been was
was she able to she was able to she has been able to has she been able to
is had been has been were
he was able was he able he had been able had he been able
have been has been were was
he has been able has he been able was he able he was able
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