Own the <anyone> <anything> by <anything>

Designated dancers do their part of the first <anything> call as the others do their part of the second <anything> call. Everyone uses their position in the overall setup to determine their part of the call, even though other dancers may be doing a different call. In particular, from a 2x4, for a four-person call everybody works on their own side. The facing direction and other characteristics of the dancers in one group do not have to be consistent with the call that the other group is doing. Such information about members of the other group may in certain situations need to be used to resolve cases where there would otherwise not be enough information to do the call (e.g., where even without applying any special "rule" a call could be done from more than one formation), but is otherwise ignored.