Template:Table demo
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{| border=1 {{{1}}}
|- {{{2}}}
| {{{3}}}| a || lots and<br>lots and<br>lots and<br>lots of text || aa
|-
| bbbbbbbb || bb || bbb
|}
gives:
| a | lots and lots and lots and lots of text |
aa |
| bbbbbbbb | bb | bbb |