Please capitalize where necessary: it is an area very quiet and well communicated with the lienas 1 and 2 metro and renfe trains.
A: It is an area very quiet and well communicated with the lienas 1 and 2 Metro and Renfe trains.

Please capitalize where necessary: soon after this he was appointed a professor at the university of berlin where he remained from 1828 to 1855.
A: Soon after this he was appointed a professor at the University of Berlin where he remained from 1828 to 1855.

Please capitalize where necessary: karl christian nielsen, born 1884
A: Karl Christian Nielsen, born 1884

Please capitalize where necessary: hi, my name is sweetangelts and i am 19 years.
A:
Hi, my name is sweetangelts and I am 19 years.