Please capitalize where necessary: during the past few decades, various diving expeditions in the caribbean have found odd structures under water (2) . for example, near the bahamian island bimini, megalithic walls and roads of hundreds of metres long were found, among other things. the roads were laid on a carefully constructed foundation, and could therefore definitely not have originated naturally.
A: During the past few decades, various diving expeditions in the Caribbean have found odd structures under water (2) . For example, near the Bahamian island Bimini, megalithic walls and roads of hundreds of metres long were found, among other things. The roads were laid on a carefully constructed foundation, and could therefore definitely not have originated naturally.

Please capitalize where necessary: and the weight of the machine was less.
A: And the weight of the machine was less.

Please capitalize where necessary: here are the different stages to achieve an origami of watermelon:
A: Here are the different stages to achieve an origami of watermelon:

Please capitalize where necessary: realmedia studio is a tool to convert, split or join realmedia files.
A:
RealMedia Studio is a tool to convert, split or join RealMedia files.