From an Alamo Ring: the designated people must be together in pairs.
They identify a well-defined box, and Follow Thru and 1/2 Press Ahead.
The others have the leader do a Loop 1 around the trailer. Then everyone connects
to 2-faced lines.
\sscircle{b1e,g3n,g4s,b2e}
\sxvlines{g3e,g2e,b3w,b2w}
before Girls Break the Alamo
after
This is sometimes called from a T-boned 2x4, with the selected people in
the center.