YOU SAID:
John L is playing chess. Jon P is probably, too.
INTO JAPANESE
ジョン・Lはチェスをしています。 Jon Pもおそらくそうです。
BACK INTO ENGLISH
John L is playing chess. Jon P probably does too.
INTO JAPANESE
ジョン・Lはチェスをしています。ジョン P もそうでしょう。
BACK INTO ENGLISH
John L is playing chess. So does John P.
INTO JAPANESE
ジョン・Lはチェスをしています。ジョン P.
BACK INTO ENGLISH
John L is playing chess. John P.
INTO JAPANESE
ジョン・Lはチェスをしています。ジョン P.
BACK INTO ENGLISH
John L is playing chess. John P.
That didn't even make that much sense in English.