Feature: Is there a phonologically bound reciprocal marker on the verb?

Feature URL:
http://grambank.clld.org/parameters/GB115
Description

(By Jakob Lesage): "A reciprocal marker indicates that an action or feeling is mutual between two or more parties (e.g. they love each other; they beat each other). A reciprocal marker may indicate both reflexive and reciprocal functions. Reduplication of verbs also counts. Reciprocal marking needs to be productive, not limited to a small set of verbs in the language that are probably lexicalized. This feature targets phonologically bound reciprocal markers.