Build sequential queries

[Daniel-Mietchen]

E.g. the current queries for metabolome and genome in the taxon aspect both depend on found in taxon (P703), so if some scout query (while something like "querying Wikidata ..." is displayed in the meantime, perhaps with a progress indicator) for the presence of any P703 statements does not yield anything, then the metabolome and genome panels would not even be queried for.

Another way to go sequentially could be to do scout queries without labels, with some basic counts (example) and without visualizations (so with output just as tables), and if that yields any results, then the actual panel could be loaded, with a message like "found some results, now rendering them for you" on display.

This might also help address #302 .

[Daniel-Mietchen]

Pinging #304 on the genome panel.

[Daniel-Mietchen]

Here is a blog post that highlights one way to approach this: http://www.snee.com/bobdc.blog/2018/08/pipelining-sparql-queries-in-m.html

[carlinmack]

by scout query you mean ask query? #617 and #1613