Final answer:
A specific nondeterministic finite automaton (NFA) is needed to determine the corresponding regex, which cannot be provided without the NFA's details including its states and transitions. NFAs can be converted to regex using various algorithms such as state elimination or Arden's Rule.
Step-by-step explanation:
It seems that there is a part of the question missing that pertains to a specific nondeterministic finite automaton (NFA), which is necessary to provide an accurate regex that matches it. Regular expressions (regex) are a powerful way to describe search patterns for strings, and they are defined using a series of characters that specify a search pattern. When it comes to NFAs, which are a conceptual representation of a computing device that takes a string of symbols as input and changes state according to those symbols and its transition function, converting an NFA to regex typically involves creating a series of states and transitions that define the same language accepted by the NFA.
Without the exact details of the NFA (states, transitions, start and accepting states), it's impossible to give the corresponding regex. However, the general method for converting an NFA to regex involves using state elimination, Arden's Rule, or other algorithms designed for such conversions.