Identified U.S. resources are estimated to be about 5 million kilograms, and the identified resources of the rest of the world are approximately 6 million kilograms.
(Identified U.S. resources; are estimated; to be about 5 million kilograms) (Identified U.S. resources; to be; about 5 million kilograms) (the identified resources of the rest of the world; are; approximately 6 million kilograms)
Identified U.S. resources Identified U.S. resources the identified resources of the rest of the world
are estimated to be are
to be about 5 million kilograms
about 5 million kilograms
approximately 6 million kilograms