QUESTION: Fix punctuation: These natural pearls are oval shape The culture of the fresh water pearls exists since the Fifties in the north of KYOTO Japan in lake BIWA jap biwaco Into fresh water oysters Hyriopsis schlegeli one introduces only square pieces of epithelium of 4mm most of the time without core The exceptional size of these molluscs 20x11cm makes it possible to make there up to ten insertions in each half with sometimes another moreover comprising one motherofpearl core Each operation gives rise to a pearlbearing bag and its pearl At the end of one year the pearls have 6 with 8mm diameter and are seldom round They are withdrawn from oysters and are reintroduced to improve their shape
ANS: These natural pearls are oval shape. The culture of the fresh water pearls exists since the Fifties in the north of KYOTO (Japan) in lake BIWA (jap: biwaco). Into fresh water oysters (Hyriopsis schlegeli), one introduces only square pieces of epithelium of 4mm, most of the time without core. The exceptional size of these molluscs (20x11cm) makes it possible to make there up to ten insertions in each half with sometimes another moreover comprising one mother-of-pearl core. Each operation gives rise to a pearl-bearing bag and its pearl. At the end of one year the pearls have 6 with 8mm diameter and are seldom round. They are withdrawn from oysters and are reintroduced to improve their shape.

QUESTION: Fix punctuation: There is a different general program which does not seem to suffer the defects of Hilbert s consistency program To determine the constructive recursive content or the constructive equivalent of the nonconstructive concepts and theorems used in mathematics particularly in arithmetic and analysis
ANS: There is a different general program which does not seem to suffer the defects of [ Hilbert 's] consistency program: To determine the constructive (recursive) content or the constructive equivalent of the non-constructive concepts and theorems used in mathematics, particularly in arithmetic and analysis.

QUESTION: Fix punctuation: Easily navigate the familiar QWERTY keyboard
ANS: Easily navigate the familiar QWERTY keyboard.

QUESTION: Fix punctuation: Even though men and women have an equal amount of hair follicles the distribution of the hairs growing in them is somewhat different
ANS:
Even though men and women have an equal amount of hair follicles, the distribution of the hairs growing in them is somewhat different.