Text: About 6 years ago, under the leadership of Pfizer's CEO and CFO, Pfizer's corporate finance organization embarked on a reengineering initiative to transform its charter, processes, products, and services.
Entailment: Pfizer's corporate finance organization began an initiative to reengineer its charter, process, products, and services; all starting about 6 years ago.
Contradiction: Pfizer has yet to rethink their charter, processes, products, and services, and has no plans to do so in the future.