question: get the support of this item the number of sequences containing it . concode_field_sep String item concode_elem_sep Set<Integer> sequencesID concode_elem_sep boolean postfix concode_field_sep Set<Integer> getSequencesID concode_elem_sep boolean isPostfix concode_elem_sep int hashCode concode_elem_sep boolean equals concode_elem_sep String getItem
target: int function ( ) { return sequencesID . size ( ) ; }