MATCH (s:Product {id:'4538875'})-[r]-> (o:Attributes)
WHERE any(key in keys(o) WHERE o[key] contains 'type-c')
return o

WITH [1,2,3,'abc'] as array,
     'abc' as string
RETURN REDUCE(res='', e in [] + array | res + e) as arrayToString,
       REDUCE(res='', e in [] + string | res + e) as testStringToString