Sorry, but there is nothing yet known as a replacement for trigonal pyramid.Perhaps your query is too complicated? For example there are alternatives to the following parts of your query:
Maybe some reasonable answers will be found next time you come. |
Your alternative for trigonal pyramid is not listed? Suggest! |
No companions for trigonal pyramid have been suggested so far. |
You have in mind a companion for trigonal pyramid and it is not yet here? Propose! |
trigonal pyramid |
|