public boolean almostEquals(Object obj) {
		if (this == obj)
			return true;
		if (getClass() != obj.getClass())
			return false;
		Term other = (Term) obj;
		if (parts == null) {
			if (other.parts != null)
				return false;
		} else if (!parts.equals(other.parts))
			return false;
		return true;
	}