Complex sentence: This was turned into "De forenede Vagtselskaber" in 1918; in 1934, a cleaning company, "Det Danske Rengøringsselskab" (DDRS) was spawned from the security company.
Split into simpler sentences: This was turned into "De forenede Vagtselskaber" in 1918. In 1934, a cleaning company, "Det Danske Rengøringsselskab" (DDRS) was spawned from the security company.