from research import *
s=begin(795,'Separate topology from its measurement weights','Can one deletion pattern carry different chronology weights without equating them?',{},['File18 Cainan; File53 Kainan deletion'])
table=[{'representation':'head index','removed_weight':1,'unit':'position'},{'representation':'BJ secondary birth path','removed_weight':57,'unit':'years'},{'representation':'File18 regular','removed_weight':130,'unit':'years'},{'representation':'File18 cumulative','removed_weight':460,'unit':'lifespan-ledger years'}]
finish(s,{'weights':table,'unavailable':'No BJ Kainan lifespan is supplied here; no BJ cumulative460 is inferred.'},'The common operation is contraction of a named path element. Its weight belongs to the selected source representation:1,57,130,460 are not interchangeable conversions.','Resolve the2450-to2400 relation through exact endpoint roles.',{'distinct':len(set(x['removed_weight'] for x in table))==4})