Assertion: poem | /r/HasProperty | without title prefixed
Facets:
Source sentences:
text: On "A slumber did my spirit seal", Wordsworth's friend Thomas Powell wrote that the poem "stands by itself, and is without title prefixed, yet we are to know, from the penetration of Mr. Wordsworth's admirers, that it is a sequel to the other deep poems that precede it, and is about one Lucy, who is dead.