A spokesman for Mayor Ganim said he had no explanation for the lack of contributions.
Various officials have their own explanation for the lack of action.
The explanation for the lack of attendance, at least according to one fan: "don't f*$;k with a winning streak".
Another likely explanation for the lack of impact on resale prices is that car companies shut down only underperforming divisions.
The explanation for the lack of green grass is the hosepipe ban introduced by Thames Water three months ago.
Hot, subdued, resigned commuters get an apology at Victoria but no explanation for the lack of carriages.
Her explanation for the lack of responsiveness on the part of some of her students' parents is therefore surprising.
In an e-mail message included in the court papers, Ms. Lenz offered an explanation for the lack of a buyer.
Some of the explanation for the lack of detail from Sanders, Clinton, and O'Malley has to do with the state of the Democratic primary race right now.
My explanation for the lack of interest in Koestler is that, fascinating though his life was, he doesn't matter much anymore.
"I think the gentleman was in hiding," Mr. Khan said, offering his government's first public explanation for the lack of Pakistani action.
