Querying full-text PMC

I would like to query keywords on full-text PMC OA xmls and retrieve the publication details (Journal, authors, pmid) and the sentence that the keyword was found in.
Is this possible in Knime? if yes, how do I set this up?

If you have the xml files, then the XPath node is what you need. You could also try you keyword search in the Vernalis ePMC Advanced query node, although you would still need to follow that with an XPath node at the current time.