user: Given a reference text about Lasantha Rodrigo, tell me how long he worked as a mechanical engineer and who worked for.

assistant: Lasantha Rodrigo worked as a mechanical engineer for Ceylon Cold Stores for 31 years.

user: What are the best ways to decrease sound resonance in a room?

assistant: The most impactful ways to decrease the sound resonance in a room would be to concentrate on a few significant points. The most impactful and easiest change is the source of the sound that is having resonance. A more suitable location not orthogonally facing a wall will decrease echo. Sound absorption is paramount to creating a space that does not meaningfully reflect sound waves in a way that causes resonance. Focus on corners and large flat walls to prevent resonance. The material and shape can distort the sound waves enough to prevent any audible artifacts from the resonance.

user: What were some historical reasons for the invention of pad thai?

assistant: The dish was invented in part to help Thailand develop a national identity, and also to promote consumption of noodles to alleviate rice shortages during world war 2.