_:B19786b034a0018c181b75106030db3cd . . "531"^^ . . . "mechanica"@nl . . . _:B19786b034a0018c181b75106030db3cd . _:B19786b034a0018c181b75106030db3cd . _:B19786b034a0018c181b75106030db3cd "2021-09-24"^^ . _:B19786b034a0018c181b75106030db3cd . _:B19786b034a0018c181b75106030db3cd . _:B19786b034a0018c181b75106030db3cd "075614812" . _:B19786b034a0018c181b75106030db3cd . _:B19786b034a0018c181b75106030db3cd . _:B19786b034a0018c181b75106030db3cd .