Exact(60)
end{aligned} (4) (s_{i}) is the position along the perimeter of the starting point of lead i.
I have to lead; I have support.
"They gave me another lead, I gave it right back.
Taking the lead: I was not a shy child.
"Because of the lead I had, everyone wanted to finish.
"My brother sang lead, I sang baritone, Cleotha sang tenor, and Yvonne sang second lead.
Following the president's lead, I would argue that Congress has the capacity for higher purpose.
Where this maddened hunt for backstories will lead, I dread to think.
I used so much pencil lead I could have drawn a line down the Great Wall.
Although we took the lead I still felt they were stronger.
If we have a 20-game lead, I still want to play every game.
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Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com