A method is provided for producing a lithographic pattern using a mask that includes the same materials as the material to be etched, allowing the pattern to be transferred and the etch mask to be removed in one step. Mobile telephones of users B and C receive, from a mobile telephone of a user A who is a speaker, DTMF information having a value of \u201c1\u201d and identifying the user A, and audio data of the user A; output an identification tone indicated by the DTMF information, and audio of the user A; and store the DTMF information and a flag indicating \u201cother\u201d. The composition for use in the method may also include other supporting plant nutrients such as botanical extracts, urea, plant hormones, vitamins and mineral supplements necessary for plant health. The object is established according to the invention by selecting RuAl as the basic system. The invention also relates to a pharmaceutical composition comprising the dsRNA together with a pharmaceutically acceptable carrier; methods for treating diseases caused by Human SCAP expression and the expression of a SCAP gene using the pharmaceutical composition; and methods for inhibiting the expression of a SCAP gene in a cell.