question: under the cooperation a number of sub-suppliers were to provide documentation for the preparation of the lca: a dye and three surface-active substances were assessed in detail by a large chemicals supplier, and a supplier of woollen fabric provided data on environmental impacts in the manufacture of wool.
Capitalize this past sentence correctly.
A: Under the cooperation a number of sub-suppliers were to provide documentation for the preparation of the LCA: A dye and three surface-active substances were assessed in detail by a large chemicals supplier, and a supplier of woollen fabric provided data on environmental impacts in the manufacture of wool.

question: easy installation, operation and maintenance
Capitalize this past sentence correctly.
A: Easy installation, operation and maintenance

question: his wife was pregnant with their first son then, so maybe he was in pre-dad mode or maybe because it was me, i don't know something snapped.
Capitalize this past sentence correctly.
A: His wife was pregnant with their first son then, so maybe he was in pre-dad mode or maybe because it was me, I don't know something snapped.