question: for 90 years, it has been clear that niacin is important to the nervous system and that severe niacin deficiency can cause dementia - as part of the deficiency disease pellagra.
Capitalize this past sentence correctly.
A: For 90 years, it has been clear that niacin is important to the nervous system and that severe niacin deficiency can cause dementia - as part of the deficiency disease pellagra.

question: round 1: continue a.1 over the first 20 sts, work a.2 (= 7 sts), work in stocking st over the next 10-10-14 sts at the same time inc 2-4-4 sts evenly over these, work a.2 (= 7 sts) and continue a.1 over the remaining 15 sts = 61-63-67 sts.
Capitalize this past sentence correctly.
A: ROUND 1: Continue A.1 over the first 20 sts, work A.2 (= 7 sts), work in stocking st over the next 10-10-14 sts AT THE SAME TIME inc 2-4-4 sts evenly over these, work A.2 (= 7 sts) and continue A.1 over the remaining 15 sts = 61-63-67 sts.

question: among other things they left a schoolboy in charge of the hiring out.
Capitalize this past sentence correctly.
A: Among other things they left a schoolboy in charge of the hiring out.