Task: Question Answering
Input (English): Context: We clambered down slowly in sweaty thongs and walked around for a couple of minutes looking unsuccessfully for the aboriginal handprint we had been told about . The scramble out was just as awkward but we decided to continue to the next one , which was not much further along . This time the entrance was down a series of natural rock ledges . 
Question: What is the source of the aboriginal handprint ?
Output (English): The handprint was an artwork on a cave wall done in prehistoric times .