Utilize the input text as a context reference, choose the right relationship between Pipistrel and Ivo Boscarol from the options. Options: product/material produced, manufacturer, distributed by, industry, position held, original broadcaster, owned by, founded by, distribution format, headquarters location, stock exchange, currency, parent organization, chief executive officer, director/manager, owner of, operator, member of, employer, chairperson, platform, subsidiary, legal form, publisher, developer, brand, business division, location of formation, creator.

Adding further intrigue, Slovenian entrepreneur Ivo Boscarol said his own attempt to cross the Channel in a Pipistrel electric plane even earlier in the week was thwarted when Germany's Siemens abruptly took away its engine, saying it was not certified over water.

Answer: chief_executive_officer