Hybrid retrieval

<div class="v"><header><b>HYBRID RETRIEVAL</b><span id="state"></span></header><main><div class="sources"><div>KEYWORD<div id="lex"></div></div><div>VECTOR<div id="vec"></div></div></div><div class="merged" id="merged"></div></main><footer>two retrieval paths, one pool</footer></div>

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let n=0;function draw(){document.getElementById("lex").innerHTML=["A","C"].map(x=>"<b class=\""+(n===0?"active":"")+"\">"+x+"</b>").join("");document.getElementById("vec").innerHTML=["B","A"].map(x=>"<b class=\""+(n===1?"active":"")+"\">"+x+"</b>").join("");document.getElementById("merged").innerHTML=n===2?"merged: <b>A</b><b>B</b><b>C</b>":"merge pending";document.getElementById("state").textContent=["lexical","semantic","combined"][n];n=(n+1)%3}draw();setInterval(draw,1000)