Commentary for Berakhot 73:13

והתניא לבסוף ולא כלום אמר רב ששת לא קשיא הא ר"ג והא רבנן דתניא זה הכלל כל שהוא משבעת המינים רבן גמליאל אומר שלש ברכות וחכמים אומרים ברכה אחת מעין שלש

But there is a teaching: After partaking thereof no benediction is required ! Rab Sheshet said : There is no contradiction : one being the opinion of Rabban Gamaliel, the other of the Rabbis. For there is a teaching : This is the general rule — Any food which belongs to the seven species, Rabban Gamaliel says : Three benedictions [are required after partaking thereof], whereas the Rabbis say : One benediction which is an abstract of three.

Abraham Cohen Footnotes to the English Translation of Masechet Berakhot