TASK DEFINITION: In this task, we ask you to elaborate the sentence without changing its general meaning. You can do so by explaining further the input sentence, using more precise wording, adding qualifiers and auxiliary information etc.
PROBLEM: The earliest of these are the chambered tombs , although later came the building of stone circles , a trend that would continue into the following Bronze Age .

SOLUTION: The earliest of these are the chambered tombs of the Early Neolithic , although in the Late Neolithic this form of monumentalization was replaced by the construction of stone circles , a trend that would continue into the following Bronze Age .

PROBLEM: In mathematics a loss function or cost function is a mathematical function that maps an event , or the values of one or more variables onto a real number .

SOLUTION: In mathematical optimization and decision theory , a loss function or cost function is a function that maps an event or values of one or more variables onto a real number intuitively representing some " cost " associated with the event .

PROBLEM: John Laing plc is a British developer and operator of privately financed , public sector infrastructure projects such as roads , railways , hospitals and schools .

SOLUTION:
John Laing Group plc ( pronounced " Lang " ) is a British investor , developer and operator of privately financed , public sector infrastructure projects such as roads , railways , hospitals and schools through Public-Private Partnership ( PPP ) and Private Finance Initiative ( PFI ) arrangements .