Problem: Does "When North Korea declared its intention to do this the Secretary-General of the United Nations, acting as registrar, said that original signatories of the ICCPR had not overlooked the possibility of explicitly providing for withdrawal, but rather had deliberately intended not to provide for it." answer the question "What two factors determine whether it is possible to withdraw from a treaty?"

A: no

Problem: Does "These chemicals, termed semiochemicals, are often derived from plant metabolites include those meant to attract, repel and provide other kinds of information." answer the question "Semiochemicals come from where?"

A: yes

Problem: Does "He did another segment on Night Gallery and did some work for shows such as Owen Marshall: Counselor at Law and The Psychiatrist, before landing the first series episode of Columbo (previous episodes were actually TV films)." answer the question "What law show did Spielberg work on?"

A:
yes