oblige

Sitting on a lawn under a shade tree, 87-year-old Ron Nelson graciously obliged when asked by yet another stranger for his recollection of that day.

"The issue is not that the government is obliged to support the trust's memorial," Sir William says.

But any kid — or fan — who asked for a picture, he waited and obliged.

Iran is legally obliged under the nuclear treaty to allow inspections.

And there was another crucial change – instead of putting their rubbish out on the street in plastic bags, now most New Yorkers are obliged to put their waste in rat-proof bins.