Rule reminder
Advanced Italian compresses causal clauses. The participio assoluto (Stanco morto, si addormentò) uses an adjective or participle to imply cause. 'In quanto + adjective/participle' without a verb is the most concise legal/formal form. Understanding these compressed structures is essential at B2-C1 level.
What is the causal meaning of: 'Stanco del viaggio, si sdraiò sul divano appena rientrato.'