The real address of this ramen resto is "Block 47 Lots 2 & 3" (if you can check the history, you'll see I deleted a previous house feature). So... am I right in writing "47-2-3" as addr:housenumber?

I remember reading the wiki for PH addresses suggested the "5-3" format for block+lot numbers (in that example, Block 5 Lot 3).