The invention is directed to thiophenecarboxamide derivatives of formulae I and II as EP4 receptor ligands, antagonists or agonists, useful for the treatment of EP4 mediated diseases or conditions, such as acute and chronic pain, osteoarthritis, rheumatoid arthritis, cancer and glaucoma. The compacting mechanism comprises a bearing plane against which cardboard is compressed. The grating surface has a radius of curvature larger than a radius of curvature of the envelope face. Further, a bracket is provided for mounting the rod to the footrest at a position between the footrest and the motorcycle, and at an elevation above the footrest. The ejection orifices which cross this peripheral wall are created so as to permit a substantially complete combustion of the gas. The zoom lens has a shorter interval between the first lens unit and the second lens unit and a longer interval between the second lens unit and the third lens unit on a telephoto end than an interval between the first lens unit and the second lens unit and an interval between the second lens unit and the third lens unit on a wide angle end, respectively.