Tokenizers How do you extract concatenated entity words from B-ORG and I-ORGs etc

I do not comprehend why these words are split into several words e.g. Chevron shows a three entities

B-ORG Ch and I-ORG ##ev and I-ORG ##ron. This is completely useless.

How do you go about putting back these words together in order to be able to use them later?