A 'yes' value indicates that the language has when clauses which are grammatically identical to independent finite clauses. Such clauses may be introduced by a temporal conjunction, as in English <i>He sleeps <b>when</b> he's tired</i>, a clitic marker as in Basque <i>Etxe-ra irits-i n-in-tz<b>-enean</b></i> 'house-ALL.SG arrive-PERF 1sg.ABS-PST-AUX<b>-when</b>' for 'when I arrived home...' (Cristofaro 2008), or no overt marker at all, as in Canela-Kraho (Cristofaro 2008). 
<br><br><b>Reference</b><br>Cristofaro, Sonia. 2008. When Clauses.
In Haspelmath et al. (2008), chapter 126. Available online at <a href=â€http://wals.info/feature/126â€> http://wals.info/feature/126</a href>. 
