Problem: Wwo sentences:
With the Fourth of July weekend approaching , state parks such as the Spruce Run Recreation Area in Union Township will be open .
With the Fourth of July weekend approaching , state parks such as Parvin State Park in Salem County will be open .
Do they have the same meaning?

Answer: yes

Problem: Wwo sentences:
In interviews with engineers , most of whom have not spoken publicly until now , the lines of discord between NASA 's engineers and managers are evident .
In interviews with numerous engineers , most of whom have not spoken publicly until now , the lines of discord between NASA 's engineers and managers stand out in stark relief .
Do they have the same meaning?

Answer: yes

Problem: Wwo sentences:
" I 'm not aware of any changes in policy - we have contacts with them , they will continue . "
" Our policies are well-known and I 'm not aware of any changes in policy .
Do they have the same meaning?

Answer: no

Problem: Wwo sentences:
History will remember the University of Washington 's Dr. Belding Scribner as the man who has saved more than a million lives by making long-term kidney dialysis possible .
Dr. Belding Scribner , inventor of a device that made long-term kidney dialysis possible and has saved more than a million lives , has died in Seattle at age 82 .
Do they have the same meaning?

Answer:
no