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 | description | bubbles | cancelable |
| mouse | dragstart | ondragstart | fired on an element when a drag is started | yes | yes |
| keyboard | keyup | onkeyup | fires when a key on the keyboard is released | yes | yes |
| html frame / object | resize | onresize | fires when a document view is resized | yes | no |
| html frame / object | scroll | onscroll | fires when a document view is scrolled | yes | no |
| html form | submit | onsubmit | fires when a form is submitted | yes | yes |
| html form | reset | onreset | fires when a form is reset | yes | no |
| mutation | domsubtreemodified | (none) | fires when the subtree is modified | yes | no |
| mutation | domnoderemoved | (none) | fires when a node has been removed from a dom - tree | yes | no |
| mutation | domnoderemovedfromdocument | (none) | fires when a node is being removed from a document | no | no |
| mutation | domattrmodified | (none) | fires when an attribute has been modified | yes | no |
Title:
dom events
Statement:
there are 4 mutations which have no attributes
Answer:
supported