I called up Marsha – is this a good day for you to invite me over for dinner? Why yes.
Then I called up Rosy – is this a good day for you to go to Tom and Marsha’s for dinner, I’ll pick you up? Why yes.
Then I called up Tom, told him the plan and told him not to tell Marsha. Why yes, why not?
Tom had previously invited Kelly and just like that part-ee.