The main objective of this study was to find out ways and methods by which knowledge of AT can be directly transferred into the hands of endusers

Can you repeat this sentence, but add in punctuation?
The main objective of this study was to find out ways and methods by which knowledge of AT can be directly transferred into the hands of end-users.
Placed in two adjacentinterrogation rooms we are unable to synchronize our stories

Can you repeat this sentence, but add in punctuation?
Placed in two adjacentinterrogation rooms, we are unable to synchronize our stories.
Repeat decrease until there are 6 dc left

Can you repeat this sentence, but add in punctuation?
Repeat decrease until there are 6 dc left.