Assertion: ballpoint pen | /r/HasProperty | the person
Facets:
value: without a doubt
type: OTHER
Source sentences:
text: While Biro may not have been the first person to come up with the concept of using a ball to apply ink to a surface, he was without a doubt the person who came up with the idea that using a ball to apply ink on paper would be an advantage over existing technology, and who then went on and invented solutions to all of the problems involved with getting the pen to first work, and then be manufacturable.