<#assign mylist=["red","blue","green"]>
${mylist[0]} -> "red"
<#assign myhash={"aa":"01","bb":"02","cc":"03"}>
${myhash.aa} -> "01"
<#assign myhastsequence={"aa":[{"art":"desk"},{"art":"chair"}]}>
${myhastsequence.aa[1].art} -> "chair"
<#assign mysequence = [
{"name":"whale", "weight":2000},
{"name":"Barbara", "weight":53},
{"name":"zeppelin", "weight":-200},
{"name":"aardvark", "weight":30},
{"name":"beetroot", "weight":0.3}
]>
${mysequence[1].name} -> "Barbara"
Please give details of the problem