"va">serBilir</span><span class="op">)</span> <span class="op">~</span> <span class="va">year</span><span class="op">:</span><span class="va">sex</span> <span class="op">+</span> <span class="va">age</span>,</span></span>
<span class="r-in"><span>                random <span class="op">=</span> <span class="op">~</span> <span class="va">year</span> <span class="op">|</span> <span class="va">id</span>, data <span class="op">=</span> <span class="va">pbc2</span><span class="op">)</span></span></span>
<span cl