It must be placed in such a way that it can frequently or constantly be stirred with an iron wire.
(It; must be placed; in such a way that it can frequently or constantly be stirred with an iron wire) (it; can be stirred; with an iron wire; T:frequently or constantly)
It it
must be placed can be stirred
in such a way that it can frequently or constantly be stirred with an iron wire
with an iron wire T:frequently or constantly