Problem: Does "However a log-periodic dipole array consists of a number of dipole elements of different lengths in order to obtain a somewhat directional antenna having an extremely wide bandwidth: these are frequently used for television reception in fringe areas." answer the question "What is the main application of these set ups?"

A: yes

Problem: Does "The authorities did not crack down on demonstrators, which encouraged more and larger demonstrations throughout the Baltic States." answer the question "Where did further protests take place?"

A: yes

Problem: Does "The rupture lasted close to 120 sec, with the majority of energy released in the first 80 sec." answer the question "On what fault did the earthquake occur?"

A:
no