Update Field with Named Link

Update Field with Named Link

I've tried using update records script triggered by a forms on Success to update a field with a named link as follows:

Sym = "<a href='http://creator.zoho.com/zoho.adminuser/zoho.appname/view-perma/TrialMap11/COJqONF68mVRfFy3UgPXXQ2jbX0OWJur3p4zUnkBWWPwq5ZWwMpHYeR0J4aEsP8MSV8DWEn5HJ6Tx4Pkb8PMTSV9te1zDBqQGBPC/TrialID=" + input.TrialID_Entries + "' target='_blank'>-</a>";

V = EvalResultGraph = [(Variety == input.Variety && Region == TrialTemp.Region) && Year == input.Harvest_Date.getYear()];

V.w1 = Sym;

Result:
<a href='http://creator.zoho.com/admin/appname/view-perma/TrialMap11/COJqONF68mVRfFy3UgPXXQ2jbX0OWJur3p4zUnkBWWPwq5ZWwMpHYeR0J4aEsP8MSV8DWEn5HJ6Tx4Pkb8PMTSV9te1zDBqQGBPC/TrialID=BROBTF111809J' target='_blank'>-</a>

What am I doing wrong?