When mapping objects with branches, the convention is to split the values to appropriate tags. In this case:
name=Iglesia ni Cristo
branch=Cagayan de Oro
amenity=place_of_worship
religion=christian
denomination=iglesia_ni_cristo

Branch names (or, as is called in this case, "lokal") should not be made part of the name tag.

Good catch! Definitely not tags, but it seems that I've inadvertently posted the task comment into the object.

I'm revising it now. Thanks!

Good job! Great to see you still mapping, and on OsmAnd, at that! :)

That's a good first edit! Congratulations, and welcome to OpenStreetMap.

For reference, you can find the documented local mapping norms here: osm.wiki/Philippines/Mapping_conventions

Hello. Welcome to OSM, and thank you for your effort to improve local map data.

I noticed that you've been adding a lot of guest houses, but they don't seem to be in expected places. Are these really guest houses or something else?

Aba! Aba! Sa Koreya nagma-mapa, at iD pa ang gamit. 😁

For consistency in tagging and mapping, kindly refer to this wiki page [0] for thePhilippine mapping conventions page

[0]: osm.wiki/Philippines/Mapping_conventions

kindly avoid adding name values that are merely descriptions of the object (i.e. "hut"), building=house will suffice. You may add other attributes like construction material, see: osm.wiki/Key:material

Hello. Could you say anything more about this project? Is there a web page where we can find more information?

Names of individuals (i.e. homeowners) are not normally added in openstreetmap, for reasons of privacy and security.

Hello. It's not necessary to add name=rumah in your buildings.

Do you mean something else? Is "rumah" a place name?

Just remember you're editing a live database, and there are many others using the map you get out of it.

Hello. Welcome to OpenStreetMap.

The gymnasium name you added is incomplete until you add a tag that classifies the object.

Edit the object, and while it is selected, search for "Sports Centre" in the left panel.

Save it, and you're good to go.

To find self-paced learning materials, try learnosm.org.

Kindly avoid tagging multiple buildings with a single way.

please don't forget to square (orthagonalize) the buildings you draw.

The undocumented tag "townhall:type:ph" is redundant. The local convention is simply to tag these buildings as townhall:type=village

@muramototomoya

If the Google translation is accurate, I agree with your observations. The OSM community has long, and strongly supported the "one feature, one element" convention for so long.

There's two more left: http://overpass-turbo.eu/s/q6L

Hi there. Great edits! Thanks for contributing.

Can you translate "payo ad kurba"?

Landuse is usually used to designated large tracts of land, and not at the individual level. If that's what you hoped to achieve, check out a sub-tag, place=plot

We're looking forward to seeing more details soon. Arigato, Taichi-san.

You need to add tags, like: "sport=scuba_diving", for example to map various points of interest. Otherwise the map rendered wouldn't understand what you're adding.

Thanks for adding data to the map.

You may add the tag "scuba_diving:divespot=yes" to indicate dive spots. See osm.wiki/Tag:sport%3Dscuba_diving for details.

You may also tag reefs: osm.wiki/Tag:natural%3Dreef

Even wrecks: osm.wiki/Tag:historic%3Dwreck

Hello Taichi-san. I'm curious about the use of name, and tourism tags on some fire hydrants. Why is that so? Are there any historical/cultural significance to these hydrants?