question: size: 5.2 m in length.
Capitalize this past sentence correctly.
A: Size: 5.2 m in length.

question: concave corner. fold the corners - the future ears.
Capitalize this past sentence correctly.
A: Concave corner. Fold the corners - the future ears.

question: 92.04 accordions and similar instruments; mouth organs
Capitalize this past sentence correctly.
A: 92.04 Accordions and similar instruments; mouth organs