But there are certain indicators.
Nobody can know for sure, but experts are keeping a close eye on certain indicators.
On certain indicators of psychopathy, the bosses's scores either matched or exceeded those of the patients.
How and why does Ronald Colman want to change the way certain indicators are measured?
But they said that they held other "intelligence," and that the attacks carried certain "indicators," which left little room for doubt.
Under New Jersey law, the state may not assume control of a municipality unless certain indicators of fiscal collapse are present, including a persistent budget deficit.
Dressed in mufti, they were not always easy to distinguish from the rest of the audience, though there were certain indicators.
A study testing British senior managers and chief executives found that on certain indicators of psychopathy their scores exceeded those of patients diagnosed with psychopathic personality disorders in the Broadmoor special hospital.
"Threat data is typically freely available information like domain names and malware samples, but for situations where a company might only want to share certain indicators with companies known to be experiencing the same issues, built-in controls make limited sharing easy and help avoid errors by using a pre-defined set of data fields," wrote Hammell.
Acid, any substance that in water solution tastes sour, changes the colour of certain indicators (e.g., reddens blue litmus paper), reacts with some metals (e.g., iron) to liberate hydrogen, reacts with bases to form salts, and promotes certain chemical reactions (acid catalysis).
Nor are possessions certain indicators.
