<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><br class=""><div><blockquote type="cite" class=""><div class="">On Jan 28, 2015, at 8:01 PM, Warin <<a href="mailto:61sundowner@gmail.com" class="">61sundowner@gmail.com</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><span style="font-family: Helvetica; font-size: 13px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">Oh.. 'multiphase' is a mixture of gas, fuel and water as it comes out of some well heads<span class="Apple-converted-space"> </span></span></div></blockquote></div><br class=""><div class=""><br class=""></div><div class="">if this is the proper term used for pipelines, then this would be the right one, </div><div class=""><br class=""></div><div class="">Otherwise, =multi (like sports) would be the best. </div><div class=""><br class=""></div><div class="">but you would not need such a tag, since it would be </div><div class=""><br class=""></div><div class="">substance=gas</div><div class="">substance:detailed=multiphase_gas</div><div class=""><br class=""></div><div class="">if you keep it at two levels of detail (water, gas, oil, fuel, sewage, heat, coolant, etc), include a catch-all like “other”, so if someone has a maple syrup pipeline (for instance - one can only dream) it can get thrown into other. There might also need to be an “industrial” one, in case someone is moving some industrial chemical that wouldn’t fit into the scheme either, though I’m not sure how exactly that would be worded. micro-mapping certain industrial facilities would require something like this. </div><div class=""><br class=""></div><div class=""><blockquote type="cite" class=""><br class="">substance=fuel<br class="">substance:detailed=drinking_water</blockquote><br class=""></div><div class="">isn't it just as error prone as </div><div class=""><br class=""></div><div class="">substance=fuel</div><div class="">fuel=drinking_water</div><div class=""><br class=""></div><div class="">?</div><div class=""><br class=""></div><div class="">using the colon separator would keep from making additional tags (everything would be kept in the substance tagspace) - especially generic tags like fuel= water= gas= which might have uses elsewhere (like the water_tap discussion here earlier) or be confused for other uses (like not a subkey, but a straight key by itself), someone could stick fuel=unleaded_87 onto a gas station. Or does that already exist?</div><div class=""><br class=""></div><div class="">Javbw</div><div class=""><br class=""></div><div class=""><br class=""></div></body></html>