Add spaces: Uncommontenacity:Tenacitymeansthedoggednessandpersistenceyouneedtostaydriveninthefaceofallodds.

Answer: Uncommon tenacity: Tenacity means the doggedness and persistence you need to stay driven in the face of all odds.

Add spaces: Weadvancethesafeuseofchemicals

Answer: We advance the safe use of chemicals

Add spaces: Wearehissonsanddaughters.

Answer:
We are his sons and daughters.