We will show that the OCHA operad is a resolution of the suboperad of top dimensional homology classes of the swiss-cheese operad. However, the resolution is not a "resolution of operads" but only a "resolution of modules over the L_\infty operad". The OCHA operad appears naturally in the first row of the E1 term of a Spectral Sequence. That Spectral Sequence does not collapse at E2 in general, nonetheless the resolution can be obtained by restricting attention to its first row.