The Board concluded otherwise, but that was before our decisions in Bahat, Hirunpidok, and Patel. In a "notice of additional citations" the INS draws our attention to the decision of a regional commissioner in December, 1974, Matter of Yang, 15 I. N. Dec. 147 (R.C. 1974). However, in Bahat, supra, we considered Yang and held that it did not give notice that Heitland applied to types of investments different from the investment in Yang. 637 F.2d at 1319 n. 12.