Please capitalize where necessary: however, they are something completely different.
A: However, they are something completely different.

Please capitalize where necessary: the chairman's committee is also given the power to reduce the administrative charge if the amount is found unreasonable, for example because the case is limited to a party which declared not being willing to participate to the mediation.
A: The Chairman's Committee is also given the power to reduce the administrative charge if the amount is found unreasonable, for example because the case is limited to a party which declared not being willing to participate to the mediation.

Please capitalize where necessary: israel navy halts gaza-bound boat without violence
A: Israel navy halts Gaza-bound boat without violence

Please capitalize where necessary: both of theseshops are located on avenida 4 de mayo in porlamar.
A:
Both of theseshops are located on Avenida 4 de Mayo in Porlamar.