<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def read_neb(self, reverse=True, terminate_on_match=True):
 """ Reads NEB data. This only works with OUTCARs from both normal VASP NEB calculations or from the CI NEB method implemented by Henkelman et al. Args: reverse (bool):
 Read files in reverse. Defaults to false. Useful for large files, esp OUTCARs, especially when used with terminate_on_match. Defaults to True here since we usually want only the final value. terminate_on_match (bool):
 Whether to terminate when there is at least one match in each key in pattern. Defaults to True here since we usually want only the final value. Renders accessible: tangent_force - Final tangent force. energy - Final energy. These can be accessed under Outcar.data[key] """

        patterns = {
            "energy": r"energy\(sigma->0\)\s+=\s+([\d\-\.]+)",
            "tangent_force": r"(NEB: projections on to tangent \(spring, REAL\)\s+\S+|tangential force \(eV/A\))\s+([\d\-\.]+)"
        }
        self.read_pattern(patterns, reverse=reverse,
                          terminate_on_match=terminate_on_match,
                          postprocess=str)
        self.data["energy"] = float(self.data["energy"][0][0])
        if self.data.get("tangent_force"):
            self.data["tangent_force"] = float(
                self.data["tangent_force"][0][1])