Reduce it!
The briefcase, which was found in a litter bin, contained classified information.
FOUND in a litter bin, the briefcase contained classified information.
OR
The briefcase FOUND in a litter bin contained classified information.
The conference planned by the non-governmental organization was about globalization.
The conference which was planned by the non-governmental organization was about globalization.
I often buy cheese. The cheese is imported from Paris.
I often buy cheese IMPORTED from Paris.
A lot of the things that are being taught in schools are not very useful for life.
A lot of the things TAUGHT in schools are not very useful for life.
I finally found the hose stolen from my garden.
I finally found the hose THAT/WHICH WAS STOLEN from my garden.
We read the email at the meeting. The email had been sent by the manager.
We read the email SENT by the manager at the meeting.
Law is a degree that is chosen by a large number of students at this university.
Law is a degree CHOSEN by a large number of students at this university.
Mixed with soda, the cocktail tastes even better.
IF YOU MIX IT with soda, the cocktail tastes even better.
Toronto is the largest city in Canada. Toronto is situated on the north shore of Lake Ontario.
Toronto, SITUATED on the north shore of Lake Ontario, is the largest city in Canada.
OR
SITUATED on the north shore of Lake Ontario, Toronto is the largest city in Canada.
They were confused by the changing information, so they thought the plane was cancelled.
CONFUSED by the changing information, they thought the plane was cancelled.
The students selected tomorrow will be offered a scholarship.
The students WHO WILL BE SELECTED/ARE GOING TO BE SELECTED tomorrow will be offered a scholarship.
The money has been given to charity. The money was found in the street.
The money FOUND in the stree has been given to charity.
If you water them at night, plants live longer.
Watered at night, plants live longer.
I don't know if I'm ever going to find the hose stolen from my garden.
I don't know if I'm ever going to find the hose THAT/WHICH HAS BEEN STOLEN from my garden.
Some of the people didn't have to do a training course. The people had been hired the month before.
The people HIRED the month before didn't have to do a training course.