f:Observation/f:component value[x]: minimum cardinality of 'value[x]' is 1 value[x]: minimum cardinality of 'value[x]' is 1 value[x]: minimum cardinality of 'value[x]' is 1 value[x]: minimum cardinality of 'value[x]' is 1 value[x]: minimum cardinality of 'value[x]' is 1