[00:04:42] <phschafft>	 hm.
[00:05:41] <phschafft>	 when I ask for '?item (wdt:P31/(wdt:P279*)) wd:Q12503' (isa integer) I get for example Q39617257 (1/16).
[00:07:03] <phschafft>	 Q39617257 P31 Q1136880 (power of two), Q1136880 P279 Q1972803 (perfect power), Q1972803 P279 Q28920052 (non-negative integer), Q28920052 P279 Q12503 (integer)
[00:07:55] <phschafft>	 perfect power has the description: positive integer that is an integer power of another positive integer
[00:08:31] <phschafft>	 power of two has the description: two raised to an integer power
[00:10:15] <phschafft>	 I think that the link between power of two and perfect power is the wrong one as it drops the requirement for the power to be positive.
[00:11:36] <phschafft>	 a similar link exists for other powers, such as Q41068772 (power of 1000)