vi purpose of prostitution." Sin generally speaking, "'cause' is a rd of cry broad import" (United States Ken skey, 243 EFTA00192170 538 146 PRDERAL REPORTER, 2d 8/CRIE8 U.S. 440, 443, 37 S.Q. 438, 439, 61 LEd. 836)1 and since to "persuade" or to "in- duce", might very well come within a broad