Sentence 1: Although this de facto standard is sometimes known as ReplayGain , it was originally known as Replay Gain and is now formally abbreviated RG .
Sentence 2: Although this de facto standard is sometimes known as ReplayGain , it was originally known as Replay Gain and is now abbreviated to formal RG .

Do these two sentences convey the same information?

pick from the following.
1). no;
2). yes;
2).