TASK DEFINITION: Given two noun phrases (arguments) and relationship between them, form a sentence that expresses theses arguments with the given relationship.
PROBLEM: Relationship: 'be service of', Argument/Subject 1: 'pubm', Argument/Subject 2: 'us national library of medicine'

SOLUTION: PubMed is a service of the U.S. National Library of Medicine that includes over 17 million citations from MEDLINE and other life science journals .

PROBLEM: Relationship: 'be city in', Argument/Subject 1: 'york', Argument/Subject 2: 'yorkshire'

SOLUTION: Selby is a small expanding market town located in North Yorkshire UK, near the historic city of York .

PROBLEM: Relationship: 'be part of', Argument/Subject 1: 'texa', Argument/Subject 2: 'mexico'

SOLUTION:
The whipsnake occurs from south central Washington south through eastern Oregon , southern Idaho , far eastern California , Nevada , Utah , eastern Colorado , north-central Arizona , western New Mexico , west Texas and parts of northern Mexico .