_:n8c48d735c5ae4bafb0773c07fc27a29fxb2
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://kr.mathworks.com/matlabcentral/answers/3952-initial-zero-value-of-every-variable-in-simulink?s_tid=prof_contriblnk>