PERSON@1 , p. NUMBER@1 The mechanical engineer PERSON@2 -LRB- c. NUMBER@2 -- NUMBER@3 -RRB- from PERSON@3 once used a waterwheel to power and operate a large mechanical puppet theater for the ORGANIZATION@1 -LRB- r. NUMBER@4 -RRB- .

The mechanical engineer PERSON@2 -LRB- NUMBER@2 -- NUMBER@3 -RRB- once used a waterwheel to power and operate a large mechanical puppet theater for Emperor PERSON@4 .
