So they studied how to make extremely smooth wooden bearings to reduce friction as they turned.
(they; turned; ) (they; studied; how to make extremely smooth wooden bearings to reduce friction) Context(they studied,List([3, 15))):(they; studied to make; extremely smooth wooden bearings to reduce friction as they turned) Context(they studied to make,List([3, 27))):(extremely smooth wooden bearings; to reduce; friction; T:as they turned)
they studied,List([3, 15)) they studied to make,List([3, 27))
they they they extremely smooth wooden bearings
turned studied studied to make to reduce
how to make extremely smooth wooden bearings to reduce friction
extremely smooth wooden bearings to reduce friction as they turned
friction T:as they turned