How to concatenate a list of values in sparql?

Question

Suppose I have a uri http://dbpedia.org/page/Manmohan_Singh now he has a list of years in his tag dbpprop:years.

When I write a query like

PREFIX r         


        

Answer 1

Look at GROUP_CONCAT but it may be easier to retrieve the data in multiple rows (you can sort to put repeats adjacent to each other) and process in code.