input question: Fix spacing: OpenApplemenuandgoto"SystemsPreferences".

output answer: Open Apple menu and go to "Systems Preferences".

input question: Fix spacing: Highperformance,designedforindustrialuse

output answer: High performance, designed for industrial use

input question: Fix spacing: TwoofhismonographsThemethodoftrigonometricsumsinthetheoryofnumbers,andSpecialvariantsofthemethodoftrigonometricsumsarealsointhebook.

output answer: Two of his monographsThe method of trigonometric sums in the theory of numbers, and Special variants of the method of trigonometric sums are also in the book.

input question: Fix spacing: Itisacomplexofyeastbutloweractslikearealplantproducingaminoacids,vitaminsBcomplex,enzymesandminerals.

output answer:
It is a complex of yeast but lower acts like a real plant producing amino acids, vitamins B complex, enzymes and minerals.