Convert rows into column groups

Hi I have the text file like this
"A"
"AA Info"
"AA Text"
"AAA"
"ABC"
"ABC Info"
"ABC Tech"
"AGH"
"SYN"
"SYMBony"
"SYN BEREN"
Like about 2000 lines

Output would be in Column with groups like following

"A"
"AA Info", "AA Text"
"AAA"
"ABC","ABC Info","ABC Tech"
"AGH"
"SYN", "SYN BEREN"
"SYMBony"
.................

Please give me a script to perform this operation.. Thanks in advance