Task: Text Categorization
Input (English): In a work compiled by his student G. E. M. Anscombe, this philosopher argued that some statements had to be exempt from doubt, like hinges on a door. This author who analyzed G.E. Moore's "here is one hand" statement in On Certainty described a series of overlapping similarities as a "family resemblance". He wrote about a "builder's language" in an explanation of why it was unnecessary to strictly define terms to make meaningful statements. This philosopher who popularized the use of truth tables wrote about a "beetle in a box" and a "duck-rabbit" in Philosophical Investigations. For 10 points, name this philosopher of language who wrote Tractatus Logico-Philosophicus.
Output (English): Social Science