Dreieich borders in the north on the town of Neu-Isenburg , in the northeast on the district-free city of Offenbach , in the east on the towns of Heusenstamm , Dietzenbach and Rodermark , in the south on the community of Messel -LRB- Darmstadt-Dieburg -RRB- and the district-free city of Darmstadt and in the southwest on the town of Langen .
Rodermark , Dietzenbach and Heusenstamm -LRB- East -RRB-
Rodermark , Dietzenbach and Heusenstamm -LRB- East -RRB-
Simplify this text: Dreieich borders in the north on the town of Neu-Isenburg , in the northeast on the district-free city of Offenbach , in the east on the towns of Heusenstamm , Dietzenbach and Rodermark , in the south on the community of Messel -LRB- Darmstadt-Dieburg -RRB- and the district-free city of Darmstadt and in the southwest on the town of Langen . Output: