Generate a correct and concise answer for the question based on the words in the context.

[Q]: Context : Robert Ledley died of Alzheimer's disease in Kensington, Maryland, USA on July 24, 2012. 
Question : Which medical condition does Robert Ledley suffer from?
[A]: Alzheimer's disease


[Q]: Context : Lotus Software (called Lotus Development Corporation before its acquisition by IBM) was an American software company based in Massachusetts. 
Question : What is Lotus Software's parent company?
[A]: IBM


[Q]: Context : Tryggevælde Runestone, designated as DR 230 under Rundata, is a runestone housed in the National Museum of Denmark, in Copenhagen. 
Question : What is the name of the place where Tryggevælde Runestone can be found?
[A]:
National Museum of Denmark