Give you a statement and table with its title in Markdown format, please determine whether the statement is supported or refuted by, or is unrelated to the table. It'a binary classification problem, you should choose the answer between supported and refuted. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| category | type | attribute | bubbles | cancelable |
| clipboard | cut | oncut | yes | yes |
| clipboard | copy | oncopy | yes | yes |
| clipboard | paste | onpaste | yes | yes |
| clipboard | beforecut | onbeforecut | yes | yes |
| clipboard | beforecopy | onbeforecopy | yes | yes |
| clipboard | beforepaste | onbeforepaste | yes | yes |
| data binding | afterupdate | onafterupdate | yes | no |
| data binding | beforeupdate | onbeforeupdate | yes | yes |
| data binding | cellchange | oncellchange | yes | no |
| data binding | dataavailable | ondataavailable | yes | no |
| data binding | datasetchanged | ondatasetchanged | yes | no |
| data binding | datasetcomplete | ondatasetcomplete | yes | no |
| data binding | errorupdate | onerrorupdate | yes | no |
| data binding | rowenter | onrowenter | yes | no |
| data binding | rowexit | onrowexit | no | yes |
| data binding | rowsdelete | onrowsdelete | yes | no |
| data binding | rowinserted | onrowinserted | yes | no |
| mouse | contextmenu | oncontextmenu | yes | yes |
| mouse | drag | ondrag | yes | yes |
| mouse | dragstart | ondragstart | yes | yes |
| mouse | dragenter | ondragenter | yes | yes |
| mouse | dragover | ondragover | yes | yes |
| mouse | dragleave | ondragleave | yes | yes |
| mouse | dragend | ondragend | yes | yes |
| mouse | drop | ondrop | yes | yes |
| mouse | selectstart | onselectstart | yes | yes |
| keyboard | help | onhelp | yes | yes |
| html frame / object | beforeunload | onbeforeunload | no | yes |
| html frame / object | stop | onstop | no | no |
| html form | beforeeditfocus | onbeforeeditfocus | yes | yes |
| marquee | start | onstart | no | no |
| marquee | finish | onfinish | no | yes |
| marquee | bounce | onbounce | no | yes |
| miscellaneous | beforeprint | onbeforeprint | no | no |
| miscellaneous | afterprint | onafterprint | no | no |
| miscellaneous | propertychange | onpropertychange | no | no |
| miscellaneous | filterchange | onfilterchange | no | no |
| miscellaneous | readystatechange | onreadystatechange | no | no |
| miscellaneous | losecapture | onlosecapture | no | no |
Title:
dom events
Statement:
when cancelable of yes , bubble of yes and a category of keyboard , the attribute is onhelp
Answer:
supported