question: fruits are cylindrical in shape and 1.8 cm long, dark green, with dark, longitudinal stripes, edible, fragrant, delicate taste. in autumn the leaves turn pink, yellow, light yellow or purple-red tones.
Capitalize this past sentence correctly.
A: Fruits are cylindrical in shape and 1.8 cm long, dark green, with dark, longitudinal stripes, edible, fragrant, delicate taste. In autumn the leaves turn pink, yellow, light yellow or purple-red tones.

question: this retail outlet have stocked these pieces. you could come and buy freely using the smallest amount.
Capitalize this past sentence correctly.
A: This retail outlet have stocked these pieces. You could come and buy freely using the smallest amount.

question: doctor pekka helin has described three small, fast methods for detecting articular rheumatism at an early stage.
Capitalize this past sentence correctly.
A: Doctor Pekka Helin has described three small, fast methods for detecting articular rheumatism at an early stage.