Randomized list of GSS triads for Interaction Priors Project

Randomized list of General Social Survey triads for Interaction Priors Project being done in collaboration with Ryne Sherman. Starting from the top, we are pruning out all items which presuppose any particular answer to a prior question. For Third Element in each triad, we are pruning out demographic questions. We will work until we have 1000 triads that are valid by the criteria just stated.