Same meaning?
In 2015 , Stephen Hawking offered Richard Branson a seat on the Virgin Galactic spaceship for free .
In 2015 , Stephen Hawking offered Richard Branson a seat free of charge on the Virgin Galactic spaceship .

Answer: yes

Same meaning?
The pottery is currently being run by Thomas Arthur Jenkins , son of Alun Jenkins .
The pottery is currently run by Alun Jenkins , son of Thomas Arthur Jenkins .

Answer: no

Same meaning?
The role of the corpus callosum in epilepsy is the interhemispheric transmission of epileptiform discharge .
The role of the corpus callosum in epilepsy is the epileptiform transmission of interhemispheric discharges .

Answer: no

Same meaning?
Moulthrop began experimenting with the hypertext theory in the 1980s and has written several articles as well as many hypertext - fiction - works since then .
Moulthrop began experimenting with hypertext theory in the 1980s , and has since authored several articles as well as written many hypertext fiction works .

Answer:
yes